用括號內(nèi)
所給單詞的適當(dāng)形式填空
1. It's five o'clock. The students __________(play) football on the playground.
2. You __________(not pass) the exam if you don't work hard enough.
3. The baby is sleeping. Could you please stop __________(make) so much noise?
4. This machine __________(use) for cleaning the house.
5. The man spoke very slowly. He wanted me __________(understand) what he said.