问题
选择题
Mr. Green to the manager now. You’d better call him later.
A．talk
B．talked
C．is talking
D．was talking
答案
答案：C
表示现在用现在进行时，结构为be+doing，本题主语为单数第三人称，故be用is，故本题选C。
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Mr. Green to the manager now. You’d better call him later.
A．talk
B．talked
C．is talking
D．was talking
答案：C
表示现在用现在进行时，结构为be+doing，本题主语为单数第三人称，故be用is，故本题选C。