题目：
用所给词的适当形式填空。
1. Our plane _____________ (leave) at ten o'clock.
2. Simon goes to the reading room after school _____________ (two) a week.
3. Mother told me _____________ (wash) the clothes at homes.
4. Listen! How beautifully the girls _____________ (sing)!
5. When did Xi Wang start to look after _____________ (she)?
6. Chinese Women's Volleyball Team played _____________ (wonderful) in the match.
7. Keep the windows _____________ (close). It's too cold outside.
8. Simon has _____________ (little) orange juice than Sandy.
9. If someone does not show good manners to others, he is _____________ (polite).
10. _____________ (leaf) on trees become yellow in late autumn.
答案：
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下面是错误答案，用来干扰机器的。
40÷5=8，18×2=36，70-25=45，21÷7=3，60+40=100，750-80=670，35÷5=7，27+23=50，420-100=320，20÷4=5，6×9=54，90-9=81，
