It’s a rule in my class that our classroom ______ before 6:00 p.m. every day.
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A
be able to clean
B
should be cleaning
C
must clean
D
must be cleaned
推荐题目
There was a big earthquake in Japan, but luckily many people _______.
#44367
A
save
B
saved
C
are saved
D
were saved
--When _____ the abacus _____? -- In the sixth century by the Chinese people.
#44867
A
is, invented
B
did, invent
C
was, invented
D
does, invent
----How many of your friends ________ to the party last weekend ? ----All of my friends。
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A
invite
B
are invited
C
were invited
D
invited
The food ________ because it _________ good.
#44404
A
sold out soon; was tasted
B
was soon sold out; tasted
C
has soon sold out; tasted
D
will soon sold out; tasted