hai vòi nước cùng chảy vào một bể không có nước thì sau 4giờ30phút bể đầy. nếu lúc đầu mở vòi 1 chảy trong 4giờ rồi khoá lại thì sau đó mở vòi thứ hai chảy trong 3giờ thì cả hai vòi chảy được 3/4 bể. tính thời gian mỗi vòi chảy riêng đầy bể
giúp mình giải chi tiết với ạ, mình cảm ơn
1. Your father never plays computer games, ?
A. hasn’t he B. does he C. doesn’t he D. does your father
2. I hard for the final exam if I were you.
A. work B. would work C. worked D. would have worked
3. My mother is a person ________ tremendously.
A. which I admire B. whom I admire C. I admire her D. who I admire her
4. She _______ a cake when the telephone rang.
A. makes B. made C. is making D. was making
5. A lot of trees _______ in the garden at the moment.
A. is grown B. is being grown C. are grown D. are being grown
6. He is _______ to do such work.
A. not enough strong B. strong not enough C. not strong enough D. enough strong
7. Tom is not used to _______ up early. He is late for school very often.
A. get B. got C. getting D. having got
8. The doctor made me _______ in bed for a week.
A. staying B. stay C. stayed D. to stay
9. Every student in my class ______ English very well.
A. speak B. speaks C. are speaking D. have spoken
10. If you aren’t sure what a word means, look it up in your _______.
A. dictionary B. notebook C. language D. pencil
11. It is 2 years since I _______ presents on Christmas Day.
A. given B. was last given C. have been given D. are given
12. _______ having the best qualifications among all the appilcants, Justin was not offered the job.
A. Although B. While C. In spite of D. Despite of
13. Women have been given ______ economic and political rights, as well as the right to choose their own husband.
A. equal B. able C. same D. alike
14. An drives ______ than she used to.
A. more carefully B. more careful C. as careful D. so carefully
15. The life at that time was very difficult ______ every family tried to buy a branch of peach blossoms to display on the Lunar New Year Festival.
A. despite B. Although C. but D. so
16. I don't like watching action films. I think they are so _________.
A. violent B. romantic C. peaceful D.funny
17. Because plastic bags are very hard to _________, they will cause pollution.
A. dissolve B. wrap C. tear D. collect
18. It was raining ________ I couldn't go outside.
A. as hard as B. so hard that C. so hard as D. too hard that
19. I wish Mary _________ me with my homework.
A. will help | B. helped | C. has helped | D. helps |
20. Volcanic eruption is one of the most ______________ natural disasters.
A. destroyed B. destruction C. destructive D. destroy
II. Choose the underlined word or phrase that needs correcting.
21. I am looking forward to see my closest friend after a long time.
A B C D
22. Jack is always forget his pen and that really annoys me.
A B C D
23. He studied very hard, so he passed the exam easy.
A B C D
24. They had all the carpets cleaned, hadn’t they?
A B C D
25. He felt annoying when he failed the exams the second time.
A B C D
giúp, và giải thích vs ạ, mình cần gấp, cảm ơn ạ
21. Jane was impressed by the beauty of Hue and the friendly of the people.
A B C D
22. It’s difficult to her to have a trip abroad now.
A B C D
23. Would you like going to the cinema with me tonight?
A B C D
24. Although we are far away from each other, but we still keep in touch.
25. I haven’t seen my grandparents since a quarter of a year.
A B C D
giúp và giải thích vs ạ, mình cảm ơn.
