One of the requirements for the fire is that the material ________ to its burning temperature. 
#89391
A
is heated
B
will be heated
C
would be heater
D
be heated
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If you had joined the chat room ten minutes ago, you _____ what we were talking about.
#87950
A
will know
B
are knowing
C
can know
D
would have known
——Excuse me, ____________?    ——That's 110 yuan altogether, sir,
#90410
A
can I order, please
B
could I have the bill, please
C
how much is the meal we've had
D
please count the money, will you