He must be helping the old man to water the flowers,________?
#64494
A
is he
B
isn't he
C
must be
D
mustn't he
推荐题目
.I imagine she hardly ever writes to you,         .
#64964
A
don’t I
B
doesn’t she
C
does she
D
do I
 “Don't get near to it.It’s too dangerous!” “_____”
#65328
A
Yes, I won't
B
No, I don't
C
No, I can't
D
No, I won't
---____ levels does the game have? -Five.
#60287
A
How long
B
How many
C
How often
D
How much