A person , when_________，can often do what is normally beyond his ability.
#90324
A
challenged
B
challenges
C
challenging
D
to challenge
推荐题目
. He regretted______ to the lecture the day before.
#97304
A
not going
B
not to go
C
not have gone
D
to not going
Parents often have their children_____ little housework so that they can have more time______.
#95750
A
doing; studying
B
done; studied
C
to do; to study
D
do; to study
Although the huge engine, as tall as 25 meters, is heavy_______, it is powerful and works well.
#95831
A
carried
B
to be carried
C
to carry
D
being exposed
Have you checked all the CDs _____ to the mountainous area next week?
#92875
A
sent
B
to be sent
C
sending
D
being sent