He has a hard time the problem.
#42186
A
works out
B
working out
C
work out
D
works out
推荐题目
---Can I borrow your dictionary? I _______ mine at home. --- OK. Here you are.
#38067
A
leave
B
will leave
C
have left
D
was left
-I'm so sorry that you didn't win the skating marathon.-How long _____ you ______?-I skated for 5 hours.
#39817
A
have, been skating
B
were, skating
C
have you skated
D
did, skate
The students the Art Festival when I passed by their school.
#41616
A
celebrate
B
were celebrating
C
will celebrate
D
have celebrated
–Where are you going for your holiday?--Well, we _______ yet.
#42779
A
haven’t decided
B
hadn’t decided
C
don’t decide
D
didn’t decide