Cho biết kết quả và ý nghĩa của cuộc tiến công địch ở biên giới phía bắc 1950

4/ Trước ý kiến đột ngột của chỉ huy .Vì sao ai cũng thấy cổ họng mình nghẹn lại..................................................................

Viết đoạn văn ngắn từ 5-10 dòng suy nghĩ về trách nhiệm của thế hệ trẻ trong việc xây dựng và bảo vệ đất nước

1/ she showed a great...in healping the disabled people in her (generous) 2/ this car is ... because it consumes much more gases than that one (economy) 3/ the firm keeps... the iphone's design to attract more customers.(change) 4/there are many ... throughout the years in the world(celebrate) 5/trung's sense of humor ... him from other students (distinct) 6/christmas is the ...festival of the year in most of Britain(big) 7/.....waves are one of the great forces of nature.(tide) 8/i'll never forget the ... you have shown me.(kind) 9/taxis are too ... for many people to afford.(cost) 10/the internet has ... developed in Vietnam 11/every student was very ... about the holiday .(excite) 12/our team played ... We lost (success) 13/We couldn't win the prize.We were .....(success)

IV. Fill in the blank with What, Where, When, Why, Who, How, How far. Ex: What is your name? - My name’s Trung. 7. ............ do you go to school? - At half past six. V. Fill in the blank with although, and, because, but, or, since, so, unless, until, when. 1. Things were different ......................... I was young. 2. I do it ......................... I like it. 3. Let us wait here ......................... the rain stops. 4. You cannot be a lawyer ......................... you have a law degree. 5. She has not called ......................... she left last week. 6. I saw him leaving one ......................... two hours ago. 7. This is an expensive ......................... very useful book. 8. We were getting tired ......................... we stopped for a rest. 9. He was angry ......................... he heard when happened. 10. Walk quickly ......................... you will be late. 11. He had to retire ......................... of illness. 12. We will go swimming next Sunday ......................... it doesn’t rain. 13. I heard a noise ......................... I turned the light on. 14. Would you like a coffee ......................... tea?

1,Rút gọn phân số a, 123639/173451 b,16515/20919 c, C= 11.12+22.24+44.48/33.36+66.72+13

Mark the letter A, B, C or D to indicate the most suitable response to complete each of the following exchanges. “Can you see anything from there? - “______” A: You look so excited! B: No, thanks. C: A small red house, a garden and a lake. D: Wow, it’s beautiful!

chọn câu trả lời sai : động lượng : a. luôn cùng hướng với vec tơ vận tốc vì vận tốc luôn dương b. ...............................................................vì khối lượng luôn dương c. là 1 đại lượng véc tơ d. luôn được tính bằng tích khối lượng và vận tốc của vật

Trong quá trình phát triển của thai nhi sự phân hoá giới tính kết thúc khi nào? A. Tuần 13 B. Tuần 7 C. Tuần 12 D. Tuần 9

Hãy nêu khái niệm của câu ca dao?