How can school ban mobile phones completely __________ some of the parents simply don’t follow the rule?
#31247
A
unless
B
when
C
until
D
before
推荐题目
________we went to visit Professor Smith, he________his research work.
#31550
A
The first time; devoted to
B
Whenever; was concentrate on
C
For the first time; was busy with
D
Each time; was absorbed in
______ seemed surprising to us was ______ he came out first in the speaking competition.
#34006
A
It; that
B
What; what
C
It ; what
D
What; that
Because of the heavy traffic，it was already time for lunch break ________ she got to her office.(2010·四川)
#29962
A
since
B
that
C
when
D
until
He is a key ____________ in the murder so we must protect him from all kinds of danger.
#34297
A
witch
B
watcher
C
wizard
D
witness
Martin drove along for more than one hour _____he found a convenient parking place.
#31714
A
after
B
once
C
until
D
Since