It is required that passengers remain ________ when the plane is taking off or landing.
#18805
A
sit
B
seating
C
sat
D
seated
推荐题目
Wolves are very ______: they can live in forests, on open plains, or in the snows of the Arctic.
#18540
A
adaptable
B
adoptable
C
available
D
accessible
How beautifully she sings! I have never heard _____ voice.
#20879
A
a better
B
a best
C
the better
D
the best
--- Are you satisfied with what he has done? --- Not at all. It can’t be ________.
#19538
A
any worse
B
so bad
C
much better
D
the worst
Lack food supplies and wanted by the police, the terrorists made a ______ attempt to hijack(劫持) a plane to Iran.
#59566
A
brave
B
fresh
C
harmful
D
desperate
--How is Tom, do you know ?--____.
#20309
A
He is very clever.
B
He’s right
C
He is much better
D
He is a doctor