When we are ______ trouble they often help us.
A. in
B. on
C. with
D. without
查看答案
I was so sleepy that I could hardly keep my eyes ______ yesterday evening.
A. opening
B. open
C. to be opened
D. to open
There are many young trees on _______sides of the road.
A. every
B. each
C. both
D. all
-- It's so cold today.--Yes, it's____than it was yesterday.
A. more cold
B. more colder
C. much colder
D. cold
Little Tom has ________ friends, so he often plays alone.
A. more
B. a little
C. many
D. few