Plastic bags have caused serious environmental pollrtion,___

Plastic bags have caused serious environmental pollrtion,____ A haven't they B have they
C don't they
D do they
缇儿 1年前 已收到1个回答 举报

没有风的峰 幼苗

共回答了10个问题采纳率:100% 举报

选择A
这里考察的是反义疑问句
因为前面是have caused这个完成时,而且是肯定,所以后面部分应该是否定的,而且是havn't they,选择A

1年前

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