The student must be working very hard, ________?
#64521
A
doesn’t he
B
mustn’t he
C
needn’t he
D
isn’t he
推荐题目
--- ________ do you stay at home at weekends?--- Ten hours.
#60115
A
How often
B
What time
C
How long
D
When
The ground is wet all over, so I’m sure it must have rained last night, ________?
#64858
A
wasn’t it
B
didn’t it
C
isn’t it
D
doesn’t it
---- ____? ---- Maybe the possible solutions to the air pollution.
#64900
A
Do you think what they are talking about
B
Do you think what are they talking about
C
What do you think they are talking aobut
D
What do you think are they talking about
—Does she ______ a knife? —No, she _________.
#60349
A
has; don’t
B
have; does
C
have; doesn’t
D
have; has