All passengers _______, please fasten your seat belts and remain seated _______ the plane is landing.
#22186
A
on board; until
B
abroad; since
C
on the board; before
D
aboard; when
推荐题目
It rained that day and ________ the basketball game was called off.
#22326
A
however
B
still
C
though
D
consequently
Since Tom ___downloaded a virus into his computer, he can not open the file now．
#22672
A
readily
B
horribly
C
accidentally
D
irregularly
The boy managed to climb out of the car, ________ unhurt
#22652
A
regularly
B
extremely
C
frequently
D
apparently
—Must I turn off the gas after cooking?—Of course.You can never be ________ careful with that.
#22273
A
enough
B
too
C
so
D
very
Keys should never be hidden around the house since thieves _____ know where to look.
#24726
A
virtually
B
variously
C
unavoidably
D
invariably