A number of foreigners ________ to China for a visit．

[　　]

A．has come

B．have come

C．comes

D．coming

答案：B
解析：

a number of的用法相當(dāng)于many，其做主語(yǔ)時(shí)謂動(dòng)應(yīng)用復(fù)數(shù)形式．


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