lớp 5A của một trường tiểu học có 25 học sinh trong đó số học sinh được xếp học lực khá và học lực giỏi môn Toán là 80% tính số học sinh được xếp loại khá và giỏi môn Toán của lớp 5A

cho tam giác ABC vuông tại A có góc ABC = 60 độ 1 tính số đo góc ACB 2 trên tia đối của tia AC lấy điểm M sao cho AM=AC.Chứng minh rằng tia AB là tia phân giác của góc MBC 3 Vẽ tia Bx là tia phân giác của góc ABC.Qua C vẽ đường thẳng vuông góc với AC cắt Bx tại N.Chứng minh AC=1/2 BN

Tính thể tích không khí ở điều kiện tiêu chuẩn cần thiết để đốt cháy hết 7,5 kg than, giả thiết than có chứa 80% C và còn lại là tạp chất không cháy.

tính nhanh 4/5*0,5+12/5*0,3+8:10*0,2

Lập dàn ý đại cương cho tác phẩm Bình Ngô Đại Cáo. Sau đó chọn 1 đoạn văn bất kì để viết 1 đoạn văn

Em hãy viết khoảng 10 dòng giới thiệu nhân vật lịch sử mà em yêu thích ở lớp 7

Viết bài văn tả lại cảnh khu vườnViết bài văn tả lại cảnh khu vườn vào 1 buổi sáng đẹp trời vào 1 buổi sáng đẹp trời

nhờ các bạn giải giúp mình mình cần gấp ạ

VII. Complete the second sentence so that it has a similar meaning to the first. 1. Did you often go to the beach when you lived in Nha Trang? Did you use................................................................................................... ? 2. Linda doesn’t live with her parents any more. Linda used ...................................................................................................... 3. I don’t have time to collect stamps as when I was in primary school. I used.............................................................................................................. 4. He is not a poor man any more, but he becomes a rich businessman. He used .......................................................................................................... 5. They didn’t often go to the cinema every Sunday last year. They didn’t use............................................................................................... 6. My hair now is much longer than that in the past. In the past my hair used ................................................................................. 7. I usually stayed up late to watch football matches last year, but now I don’t. I used.............................................................................................................. 8. There were some trees in the field, but now there aren’t any. There used......................................................................................................

IV. Put the words/ phrases from the box in each space to complete the following sentences. zebra crossing railway station speed limit traffic jams road user means of transport driving license safety helmet road safety train tickets 1. The government has introduced a new _______ campaign in an attempt to reduce the number of road accidents. 2. A ____________ is a hard hat which covers and protects the whole head, worn especially by motorcyclist. 3. We looked on our map to find the way to the __________________. 4. Roadworks have caused __________________ throughout the city centre. 5. A _____________ is a place on a road at which vehicles must stop to allow people to walk across the road. 6. You should know the regulations in order to become a good ______________. 7. A ________________ is an official document that shows you are able to drive. 8. Slow down because you’re breaking the __________________. 9. We needed to get to Ha Noi, but we had no __________________. 10. I have two ___________ available to go to Lao Cai. Would you like to go with me to Sa Pa? V. Complete the sentences with “used to” or “didn’t use to”. 1. I ___________________ like sports, but now I do a lot of different sports. 2. I ___________________ be afraid of heights, but then I started climbing hills. 3. I ___________________ like putting my head in the water because I couldn’tswim. 4. I __________________ go skating until I met Anna in Switzerland, and then we have practised a lot so far. 5. I ___________________ go to school on foot, but now I ride a bicycle to school. VI. Make sentences using the words and phrases given. 1. Another problem/ the increase/ the number/ cars/ the road. ................................................................................................................................................................................ 2. There/ transport rules/ but/ many people/ not seen/ really interested/ follow/them. ................................................................................................................................................................................ 3. The traffic/ worst/ rush hours/ when/ everyone/ try/ get to work/ get home quickly. ................................................................................................................................................................................ 4. Some people/ ride/ motorbikes/ the pavements/ rather than/ waiting/ a traffic jam. ................................................................................................................................................................................ 5. The traffic/ a nightmare/ visitors/ Viet Nam/ the first time. ................................................................................................................................................................................ 6. More people/ own/ private cars/ it/ make/ the problem/ the traffic jams/ worse. ................................................................................................................................................................................ 7. Pedestrians/ get injured/ hit easily/ when/ they/ walk/ the pavements/ cross the roads/ such times. ................................................................................................................................................................................ 8. Road users/ very impatient/ quite aggressive/ constantly using their horns/ even shouting/ others. ................................................................................................................................................................................ 9. Three or four people/ one motorbike/ a common sight/ particularly/ young people. ................................................................................................................................................................................ 10. Some people/ install/ air horn/ their motorbikes/ this/ really annoying/ other people/ sometimes/ it cause/ accidents. ...............................................................................................................................................................................