一、单项填空 在A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。（本大题共14小题，每小题1分，共14分）
1. We students have a __________ holiday every summer.
A. two months B. two months C. two-month D. two-months
2. — Why don’t we take a little break?
— Haven’t we just had __________?
A. it B. one C. this D. that
3. He turned __________ the TV a little because his father was asleep.
A. up B. on C. off D. down
