It’s hard-working ____ him to spend three hours ____ the library on Sunday.
#47932
A
for; in
B
for; on
C
of; in
D
of; on
推荐题目
My little cat sleeps _______ the day , but ______night he begins to work.
#49205
A
at , at
B
on, in
C
on, at
D
during, at
Mount Wuyi is worth ______. The mountains there are covered ______ all kinds of green plants.
#46347
A
visiting; of
B
to visit; with
C
to visit; by
D
visiting; with