---May I go and play with Tom this afternoon, mum? ---No．You can’t go out ______ your homework is being done．
#33631
A
until
B
after
C
before
D
as
推荐题目
_________ I traveled by boat, I got seasick.
#34724
A
After
B
Each time
C
The every time
D
Each time when
_______ the two are only several days apart in age, they seem to belong to wholly different generations.
#31480
A
While
B
When
C
As
D
Since
_____ to go abroad, his spare time is totally spent in learning English.
#34639
A
Having intended
B
Intending
C
To intend
D
Because he intends
Please call my secretary to arrange a meeting this afternoon, or ________ it is convenient to you.
#30284
A
whenever
B
however
C
whichever
D
wherever