—Oh, it’s too difficult for me ____________ the task in such a short time.—Cheer up! I am sure you can. 
#49214
A
finish
B
to finish
C
finished
D
finishing
推荐题目
-Would you mind ____ here? -Sorry, I won’t. 
#49309
A
smoke
B
smoking
C
smokes
D
not smoking
-Last semester, he had a hard time______ English.
#50462
A
learns
B
learning
C
to learn
D
learnt
My parents want me   more exercise. 
#48989
A
take
B
takes
C
taking
D
to take