1 Students whose homework is late will be punished

2 If you aren't careful, you will drop the vase

3 Last night he talked to people whose houses were destroyed in the storm

4 Although it was cold outside, they still went to the football match

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1. Students whose homework is late will be punished.
2. If you are careful, you won't drop the vase.
3. Last night he talked to people whose houses had been destroyed in the storm.
4. Although it was cold outside, they still went to the football match.
5. In my opinion, we ought to have a celebration for our parents. One of the most important reasons is that it will be the day for children to express feelings to their parents. In addition, children and parents will have a connection to understand each other deeply. Another reason is that members in a family will have time to gather and eat together.