Taiwan is ______ ______ the Treasure Island of China and it is    a part of China.
#44513
A
regard as
B
regarded as
C
regard to
D
regarded to
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—Hey, Jack. Waste paper ________ here.—Sorry, I won’t do that again.    
#44557
A
cannot throw
B
cannot be thrown
C
will not throw
D
will not be thrown
Please don’t stand up in class _____ you ______.
#44549
A
until ; are told to
B
when ; are told
C
after ; were told
D
before ; were told to
.The school meeting ________ once every two weeks in the concert hall.
#44390
A
is held
B
was held
C
will be held
D
has been held