I think ______ necessary for us ______ the birds. |
[ ]
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A. it ; protect B. its; to protect C. it's ; protecting D. it; to protect |
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与“I think ______ necessary for us ______ the birds.[ ]A. it ; protectB. its; to protectC. it's ; protecting D. it; to protect”考查相似的试题有: