II. Put the correct form/tense of the verbs in the brackets 1. Nga often (watch) …..TV in her free time 2. Now they (write)….. an essay in English. 3. He is good at (fix)……..things in the house. 4. She usually (study)…….late at every night. 5. We would like (buy)……….. a dictionary. 6. Mrs Hoa (have)………….a round face. 7+ 8. Nam (not enjoy)…. (eat)….bananas. 9. He learn how (play)…….the guitar. 10. I spend half an hour (cut)……..paper to make toys every day. IVRewrite these sentences so that it has the same meaning ( 1.0pts) 1. My new school has a computer room and a large playground.-> There ……… 2. Are there twenty boys in your class? -> Does …………………..…………………? 3. Hoa’s house is behind the bookshop. -> The bookshop ……………………….. 4. I like Music and English best. -> My favourite ..…………………………...……… 5. She walks to school. -> She goes…………………………………………………………

Xác định thành phần % theo khối lượng hoặc theo thể tích. VD1/ Dẫn 2,24 lít hỗn hợp khí metan và Etilen qua bình đựng dung dịch Brom dư thấy có 1,68 lít khí thoát ra khỏi bình. Tính thành phần phần trăm về thể tích mỗi khí trong hỗn hợp.

Một đoàn xe tải chở 290 tấn xi măng cho một công trình xây đập thủy điện. Đoàn xe có 57 chiếc xe gồm 3 loại, xe chở 3 tấn, xe chở 5 tấn, xe chở 7,5 tấn. Nếu dùng tất cả xe 7,5 tấn chở 3 chuyến thì được số xi măng bằng tổng số xi măng do xe 5 tấn chở 3 chuyến và xe 3 tấn chở 2 chuyến. Hỏi số xe mỗi loại?

-5-x=-11 thì x bằng: A. 6 B.-6 C.16 D.-16

phân tích các đa thức sau thành nhân tử a) 5x(x-2)-3x^2(x-2) b) 16x^2-(x^2+4)^2 c) 5x^2-5xy+7y-7x d) 3x^2-8x+4 e) x^4+64

248hg:4+25dag=...... 48m2cm+45dm3cm x 3 giúp em nhanh vs

Vấn đề khai thác bảo vệ tài nguyên khoáng sản nước ta hiện nay được đặt ra là gì

and but so because although 1. Children love cartoons________________ they make them feel happy. 2.____________ the newsreader speaks really fast, my father can hear everything. 3. The animal programme is so late____________ I can’t wait for it. 4. Some game shows are popular,_____________ I never watch them. 5. My sister is a weather woman, ___________my father is a newsreader.

Ex1.Put the correct verb form 0.She has never traveled(never/travel)by plane before 1.I_____(dream)of winning a medal for a long time. 2.She_______(not/see) much ò Vietnam,so she wanto to see more this year. 3._________you ever________(be)to a desert?No,never. 4.Van_____(throw)a surprise party for her boyfriend. 5.Where_____Stephen____(be)for the past2 days? Ex2.Underline the correct answer 0.His family hasn't contacted/didn't contact him for 5 years 1.She has seen/saw that movie more than5 times. 2.Stop complaining! You haven't stopped/stopped since you arrived. 3.We haven't found/didn't find any sign of life since we landed on Mars. 4.M.s Đó has never me to see her flast. 5.Congratulations!You have passed the exam.

There is one mistake in each sentence.Find and correct it