There is some doubt Mr Zhang will sign the contract with us. A. when B. whether C. if——青夏教育精英家教网—

摘要： There is some doubt Mr Zhang will sign the contract with us. A. when B. whether C. if D. that

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There is some doubt _________ Mr Zhang will sign the contract with us.

A. when B. whether C. if D. that

There is some doubt _________ Mr Zhang will sign the contract with us.

A. when B. whether C. if D. that

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