. Enough attention should be paid to _____ your pronunciation and intonation.
#97051
A
improve
B
improving
C
improved
D
be improve
推荐题目
If you go on thin ice ,you risk ______through.
#96086
A
fall
B
to fall
C
fell
D
falling
A person , when_________,can often do what is normally beyond his ability.
#90324
A
challenged
B
challenges
C
challenging
D
to challenge
I planned ________ to see you last week, but I was ill.
#98412
A
to have come
B
to come
C
to be coming
D
to have been coming