题目内容
--- What’re you going to do to protect the environment?
--- Plant trees on side of the river.
| A.both | B.all | C.each | D.every |
C
解析
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题目内容
--- What’re you going to do to protect the environment?
--- Plant trees on side of the river.
| A.both | B.all | C.each | D.every |
C
解析
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