To make our city more beautiful ,rubbish ______ into the river.
#44541
A
must throw
B
can’t throw
C
needn’t be thrown
D
mustn’t be thrown
推荐题目
I think teenagers ____________ to choose their own clothes.
#44596
A
be allowing
B
should be allowed
C
be allowed
D
should allowed
—What happened to Billy?—He________because of his drink-driving.
#44936
A
is caught
B
was caught
C
has caught
D
had caught
--When _____ the abacus _____?   -- In the sixth century by the Chinese people.
#44867
A
is, invented
B
did, invent
C
was, invented
D
does, invent