1:You/should/go/air plane/if/you/want/some/Ha Noi soon
-> You should go by air plane if you want to (chỗ này đề bạn bị sai).
2:Students/ought/teachers/explanation/if/they/not/understand/ lessons
-> Students ought to ask their teachers for explainations if they don't understand the lessons.
3:We/must/postpone/ meeting/if/manager/not/come/soon
-> We must postpone the meeting if the manager doesn't come soon.
4:I/can/go/picnic/ friends/if/we/have/3 days off
-> I could go for a picnic with my friends if we had 3 days off.
1. You should go by air plane if you want to come to Ha Noi soon.
2. Students should ask the teachers about explanation if they do not understand the lessons.
3. We must to postpone the meeting if the manager not be come soon.
4. I can go picnic with friends if we have 3 days off.
???
