27.The distance from Ho Chi Minh city to Phu Quoc Island is about 300km.
It is about 300km from Ho Chi Minh city to Phu Quoc Island.
CT:The distance+from+N+to+N+tobe+about+length.
28.Road users should obey traffic rules strictly.
Traffic rules should be obeyed strictly by road users.
CT: Bị động với đt khuyết thiếu:
S+should/may/can/...+Be+P2+by O.
29.Be careful or you’ll hurt yourself.
If you are not careful,you will hurt yourself.
CT: Câu điều kiện loại 1:
IF S+V+O,S+will+V+O
30.People water the flowers every day.
The flowers are watered every day.
CT: Câu bị động thì HTĐ:
S+are/am/is+P2+(by O)+time.
31. I prefer watching TV to listening to music.
I like watching TV than listening to music.
32. I spend two hours doing my homework.
It takes me two hours to do my homework.
CT:S+spend+time+Ving+O
It takes+S+time+to do+O.