We usually play sports _______three hours every day.
#48078
A
for
B
in
C
of
D
at
推荐题目
It is very kind _____ you to help me with my lessons because it is very difficult _____me to learn them well.
#50539
A
of; for
B
of; of
C
for;of
D
for; for
Little Tom made a lot of mistakes ___________his carelessness.
#46891
A
as
B
with
C
because
D
because of
