The pollution problem here seems to get more and more serious .Something ____with it .
#76542
A
has done
B
must be done
C
is doing
D
was done
推荐题目
My grandfather us stories when I was young.
#77240
A
was used to tell
B
is used to telling
C
used to tell
D
used to telling
--How does Jack usually go to school? --He_____________ride a bike, but now he_______________there to lose weight.
#78085
A
used to, is used to walk
B
was used to, is used to walking
C
was used to, is used to walk
D
used to, is used to walking
---May we leave the classroom now?---No, you . You to leave until the bell rings.
#75743
A
mustn’t, are allowed
B
don’t have to, are supposed
C
needn’t, aren’t allowed
D
can’t, aren’t supposed
Students ________ remain in their seats until all the papers have been collected.
#62519
A
shall
B
might
C
could
D
will