_____________________

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A. we shouldn't make any noise on the grass

B. we shouldn't walk on the grass

C. we shouldn't eat or drink on the grass

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A. in B. on C. at

1．例：口＋少＝吵

（_____）＋（_____）＝胖　　（_____）＋（_____）＝现　　（_____）＋（_____）＝岁

2．例：飘－风＝票

校－（_____）＝交　　张－（_____）＝弓　　甜－（_____）＝甘

【题目】They love ________ trees. （ ）
A. climbing
B.climb
C.climbed

A. has；have B. have；has C. have；have

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A. She is a teacher. B. I don’t like lemons. C. I have some oranges.