Landing safely in bad weather is a _______ task for any pilot, and even the smallest error can lead to a disaster.
#17896
A
tricky
B
secure
C
significant
D
easy
推荐题目
More ________ information is needed to help us work out the real situation.
#17644
A
generous
B
reliable
C
grateful
D
fluent
After reading the school report, Tom really felt .
#17912
A
disappointed, disappointing
B
disappointing, disappointed
C
disappointing , disappointing
D
disappointed, disappointed
She felt _____ of having asked such a silly question when the audience couldn't help laughing.
#20894
A
guilty
B
crazy
C
miserable
D
ashamed
—Do you think our teacher is ________ ？—Yes， he always corrects our homework and prepares his lessons _______.
#19908
A
careful； careful
B
careful； carefully
C
carefully； carefully
D
carefully； careful
Please remain _________ until the plane has come to a complete stop.
#18813
A
to seat
B
to be seated
C
seating
D
seated