-- 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
I’m very lonely .I’d like to find someone         
#50147
A
to play
B
playing
C
to play with
D
playing with
Thank you for______ let me_______ on the trip today.
#49990
A
agree to;go
B
agreeing;going
C
agreeing to;go
D
agree;to go
She spent a lot of time _________the fire that day.
#50622
A
to put out
B
putting out
C
to put on
D
putting on
Half-time is a ________ period for the players _________.
#49074
A
10-minute, have a rest
B
10-minute; to have a rest
C
10 minutes; to rest
D
10 minute; for rest