He is a man who is active in social activities.and he do public service work now
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He is a man who is active in social activities，and he ________ do public service work now and then．
[]A．is about to
B．is going to
C．is willing to
D．will
试题答案
答案：C
解析：A、B、D项都表示将来，这里应用一般现在时，所以选择C项．be willing to do sth．意思是“乐意做某事”． |