问题补充:
“You your teacher for help. He is kind-hearted.” “Yes. A whole day .”
A. can ask, will waste
B. must have asked, had wasted
C. could have asked, was wasted
D. shouldn’t have asked, would be wasted
答案:
A. can ask, will waste
B. must have asked, had wasted
(答案→)C. could have asked, was wasted
D. shouldn’t have asked, would be wasted
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