题目内容
Do you know the difficulty the little girl had ________ to send her sick mother to the hospital in time?
- A.on managing
- B.to manage
- C.having managed
- D.managing
D
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___ is the most useful invention?
A.Do you think which of these |
B.Which of these you know |
C.Which of these do you know |
D.You know which of these |
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B.go through; approved |
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