--I’m worried about my English. -- ______ harder ________ you will catch up with your classmates.
#70935
A
Working; and
B
To work; or
C
Work; and
D
Worked; or
推荐题目
 Behind the department store there used to ______ much waste, _______?
#68979
A
have; usedn’t it
B
being; usedn’t there
C
be; usedn’t it
D
be; usedn’t there
Betty's never seen a three-D movies,               ?
#69001
A
does she
B
isn't she
C
has she
D
hasn't she
—Did you go to Jack’s birthday party? —No, I _______. 
#69316
A
am not invited
B
wasn’t invited
C
haven’t invited
D
didn’t invite
-- Peter didn’t use to be heavy, did he?-- ________. But look, how thin he is!
#68539
A
Yes, he did
B
No, he didn’t
C
Yes, he was
D
No, he wasn’t
In those days, few people liked dancing,_____?
#68624
A
didn’t they
B
did they
C
don’t they
D
were they