题目内容
It's time ________ him ________ on duty.
[ ]
A.for, being |
B.for, to be |
C.of, being |
D.of, to be |
答案:B
练习册系列答案
相关题目
It’s time supper now.
A.for have | B.have | C.to | D.for |
It’s time for class . Let’s stop .
A.talk | B.to talk | C.talking | D.not talk |