问题
选择题
Look!One of the children _____ in the river.
A．was swimming
B．is swimming
C．are swimming
D．were swimming
答案
答案：B
根据Look!，用现在进行时，且主语是!One of the children，谓语要用单数，选B。，
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Look!One of the children _____ in the river.
A．was swimming
B．is swimming
C．are swimming
D．were swimming
答案：B
根据Look!，用现在进行时，且主语是!One of the children，谓语要用单数，选B。，