What do you do_____ National Day?[ ]

________, the boy couldn’t enter his house.

The boy has _____ poor eyesight, but he has _____ good sense of humour.

As a young man, there was __________ time __________ I hated to go to school .

Excuse me, could you please tell me if the match will be held on time? —It depends on the weather. If it rains tomorrow, we’ll have to ______ it ______.