He found          difficult to improve his English          the teacher’s help.
#52346
A
it is; without
B
it was; with
C
it; without
D
that is; with
推荐题目
The girl is often heard _______ in the next room.
#60507
A
sing
B
to sing
C
singing
D
sings
Sara  _____  a stomachache. So she ____ eat anything for twenty-four hours.
#53321
A
has, shouldn’t
B
has, should
C
have, shouldn’t
D
have, should
Would you please ________ the cup of coffee?
#62359
A
pass
B
to pass
C
passing
D
to passing