7. My mother takes care of sick children in the hospital 
-> My mother looks after sick children in the hospital
                       take care of = look after 
8. You shouldn't eat too much meat
-> You'd better not eat too much meat
                     shouldn't = would better not ( you'd là you would ) 
9. Listening to music at home is more interesting than going to the concert|
-> I prefer listening to music at home to going to the concert
                        prefer ... to = is more interesting than = better than
10 We didnt enjoy the trip because of the heavy rain 
-> The heavy rain prevented us from enjoying the trip
                        prevent sth/ someone from .... ( ngăn cản ai/ cái gì làm gì đó)
11. It took Mr Hoang half an hour to walk to work yesterday
-> Mr Hoang spent half an hour walking to work yesterday. 
                        spend + time + v_ing: dành thời gian làm gì đó
12. What is the price of this cap?
-> How much does this cap cost? / How much is this cap?
                    What is the price of something = How much... cost/ How much is/are ....
13. The weather is too cold for us to go out.
-> The weather is not warm enough for us to go out.
                          too cold = not warm enough ( lạnh = không đủ ấm)
14. We usually wrote letters when we lived in the country side 
-> We used to write letters when we lived in the country side
                          used to + v_ inf dùng để chỉ hành động thường làm TRONG QUÁ KHỨ
15. This is a very beautiful house.
-> What a very beautiful house! 
                          Cấu trúc câu cảm thán nhé
16. Mai has taught English for 5 years
-> English has been taught to Mai for 5 years
              Dạng bị động ở thì hiện tại hoàn thành, lớp 7 chưa được học nên hơi quá sức với bạn;v
Mình gửi nhé, chúc bạn học tốt!!!!!!