问题
Where is your father—He is helping David ______ a shelf above the bed.
A:put in
B:put on
C:put up
D:put out;
B:put on
C:put up
D:put out;
正确答案是：
同类题型
do you spell ruler—-R—U—L—E—R, ruler.
You may use the room as you like ____ you clean it up afterwards.
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stayed awake in bed, watching the heavy rain beating ________ the windows.
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