--- Is Li Ming in the classroom?--- No, he        there. I saw him in the reading room just now.
#37190
A
can’t be
B
mustn’t be
C
needn’t be
D
is
推荐题目
The cleaners must prevent the street _____.
#38226
A
from getting dirty
B
to dirty
C
to get dirty
D
getting dirty
They took rock samples back to Earth for _____study.
#42229
A
farther
B
step by step
C
further
D
far away