24．I think is necessary for us to learn computers． A．it B．its C．this——青夏教育精英家教网—

摘要：24．I think is necessary for us to learn computers． A．it B．its C．this D．that

网址：http://m.1010jiajiao.com/timu_id_1375595[举报]

I think ___is necessary ___ my 20-year-old daughter to have her own mobile.

A．that; of B．it; of C．that; for D．it; for

I think ______ is necessary ______ us to do something useful to protect the birds.

A. this; for B. it; of C. this; of D. it; for

I think ______ is necessary ______ us to do something useful to protect the birds.

A. this; for B. it; of C. this; of D.it;for

I think ___is necessary ___ my 20-year-old daughter to have her own mobile.

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