—What a nice classroom! —It _____ every day.
#44598
A
is cleaning
B
has cleaned
C
must clean
D
is cleaned
推荐题目
I don’t think teenagers should go to bars.
#44749
A
allow to
B
be allowed to
C
not allow to
D
be allowed
The world has a big headache and it _______ by money. It began in America last year.
#44846
A
cause
B
causes
C
is caused
D
are caused
An official _____ by some reporters on food problems in Shanghai yesterday.
#44962
A
is interviewing
B
is interviewed
C
was interviewing
D
was interviewed