-- The math problem _________ is not difficult. --- But after several tries , I have to give up _________ on it .
#49383
A
it’s , working
B
itself , to work
C
itself , working
D
its , to work
推荐题目
—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
—Would you mind me________ the door ?—______________. Please do it now.
#50423
A
closing, Of course
B
toclose, Of coursenot
C
closing, Certainly not
D
close, Certainly
