At the top of the high mountains, there is very _____ oxygen in the air.
#40209
A
a little
B
little
C
a few
D
few
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Would you lend me some money,please?I have used up mine.
#42642
A
eaten up
B
run out of
C
added up
D
gone up
It’s good to give our seats _________ the bus ________the __________.
#36713
A
in; for; old
B
on; to; elderly
C
in; to; eld
D
on; to; young