.Emergency line operators must always ______ calm and make sure that they get all the information they need to send help.
#82116
A
grow
B
appear
C
become
D
stay
推荐题目
Lucy switched on the engine and the car _______ in a cloud of dust.
#80533
A
set out
B
set about
C
set off
D
set down
He is so fat that he has decided to______.
#75020
A
lose weight
B
lose his weight
C
put on weight
D
put on his weight
With consumers searching _______ ways to cut daily expenses, officials from the National Bureau of Statistics' economic monitoring center say there's no need _______.
#64856
A
of; in panic
B
to; panic
C
for; to panic
D
in; panicked
In face of difficulties the climbers______in the hope of reaching the top before dark.
#83623
A
insisted on
B
looked up
C
turned away
D
kept on