According to the air traffic rules，you should your mobile phone before boarding．
#70302
A
switch over
B
switch on
C
switch off
D
switch round
推荐题目
This problem may _______ more serious ones if left unsolved.
#72583
A
come across
B
refer to
C
carry on
D
lead to
I’m afraid that it is you, ________ Bernard, _______ to blame.
#82873
A
more than; who is
B
rather; that are
C
other than; that is
D
less than; which are
Mr. Brown was sentenced to 10 years’ imprisonment（监禁） for ______ murder.
#73016
A
practicing
B
confirming
C
performing
D
committing
The local people ________ building the new hotel because of the great cost.
#72424
A
opposed
B
accused
C
disagreed
D
objected
Li Ming won the first prize in the English speech contest and I’m glad that his efforts at last ____.
#76113
A
paid off
B
worked out
C
got back
D
turned out