— Have you solved your problem?— I’ve kept on thinking about that matter__________, but I have had no idea.
#45928
A
at times
B
some time
C
at a time
D
all the time
推荐题目
My best friend is good___ swimming, but I do well ________running.
#50344
A
at; in
B
in ; at
C
at; at
D
in; in
It’s so silly ________ people to buy and store so much salt. It’s necessary ________ them to learn more about salt.
#48882
A
for; for
B
for; of
C
of; of
D
of; for
