题目内容
–Do you know our town at all?
–No, this is the first time I _____ here.
A. was B. am going C. came D. have been
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 |
Do you know the stages every inventor must ________ before they can have their invention________ .
A.go through; approve |
B.go through; approved |
C.get through; approval |
D.look through; approved |