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
推荐题目
The bread smells _________ and it sells ________.
#37042
A
well; good
B
good; good
C
good; well
D
well; well
My son ______spend all his pocket money, but now he ______saving some of it.
#44038
A
was used to…used to
B
used to…is used to
C
used to…used to
D
was used to…is used to