问题
选择题
— How's your new babysitter?
— We ________ ask for a better one. All our kids love her so much.[ ]
A. should
B. might
C. mustn't
D. couldn't
答案
答案：D
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— How's your new babysitter?
— We ________ ask for a better one. All our kids love her so much.[ ]
A. should
B. might
C. mustn't
D. couldn't
答案：D