Jim"s plans to go to college ______ at the last moment.
A. fell out
B. gave away
C. gave off
D. fell through
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The education of the young is seen ______ of primary importance.
A. to be
B. be
C. is
D. was
The reason why he adapted to the new situations quickly is that he has a ______ attitude.
A. changeable
B. alternate
C. movable
D. flexible
______ is not who you are that is important, but what you are.
A. This
B. That
C. It
D. What
在微型计算机使用的键盘上,Backspace键称为______。
A. 控制键
B. 上档键
C. 退格键
D. 制表定位键