建筑立面图的比例一般采用（ ）。
A. 1:50
B. 1:100
C. 1:200
D. 1:300
E. 1:500
Yesterday afternoon Mrs Green told the boys _____ football in the classroom.
A. didn't play
B. to not play
C. not to play
D. not play
Look! How heavy the rain is! You'd better ______now .
A. don't go
B. stay here when it stops
C. not leave until it stops
D. not to leave until at once
Let him ______ a rest. I think he must be tired after the long walk.
A. have
B. gets
C. to take
D. has
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