“You your teacher for help. He is kind-hearted. “Yes. A whole day . A．can ask, w
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“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 |
试题答案
C
解析