---I find the more we study, the more difficulty we have ________ out Maths problems.---Oh, I agree with you. Maths is more and more difficult.
#50150
A
worked
B
work
C
works
D
working
推荐题目
The little boy was last seen __________ football by the river.
#48508
A
to play
B
play
C
played
D
playing
The best way ___ your English is to join an English club.
#49511
A
to improve
B
improve
C
improving
D
improves
——would you like somewhere__________?——No, thanks. I have a big room ________.
#48887
A
live ,live
B
to live , to live
C
living, to live
D
to live , to live in
Jack is often seen _______ basketball with his friends after school.
#50900
A
play
B
to play
C
to playing
D
played
I phoned the dentist, he advised me ____ hot things.
#49123
A
not have
B
to not have
C
having no
D
not to have