We should return the books to the library ______ time.
#50246
A
about
B
on
C
by
D
for
推荐题目
—How do you study English?—I study English ______ talking with foreign students.
#50766
A
by
B
in
C
at
D
on
— A Boeing 777-200 plane became lost in communication (失去联系) at midnight the early morning of March 8th． —I was amazed(震惊) to hear that.
#45881
A
on
B
in
C
at
D
of
Our sports meeting has been ____ till next Monday because of the bad weather.
#50170
A
put on
B
put up
C
put off
D
put down