________ the course very difficult，she decided to move to a lower level.(2013·北京，24)
#88738
A
Find
B
Finding
C
To find
D
Found
推荐题目
Have you considered how weak humans are a volcano, hurricane or earthquake?
#91850
A
comparing with
B
to compare with
C
compared with
D
having been compared with
The father often buys his son English learning materials, ____at encouraging him to learn English.
#91982
A
aim
B
aimed
C
to aim
D
aiming
_____ from the top of the tower, the east foot of the mountain is a sea of rape flowers.
#93199
A
Seen
B
Seeing
C
Having seen
D
To see
The meeting _________ next week is sure to be a great success.
#91279
A
to hold
B
to be hold
C
to have held
D
being held
With temperature ______ so rapidly, we could not go with the experiment.
#88258
A
fall
B
falling
C
fallen
D
to fall