题目内容
Do you know where ______ my story books?
[ ]
A. did my mother put
B. my mother put
C. does my mother put
D. my mother putted
B. my mother put
C. does my mother put
D. my mother putted
B
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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 |