Old people must be____ politely
#44739
A
spoken to
B
speak to
C
poken
D
spoke
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—Professor Wang ______ to give us a talk next week.—Really? That’s good news.
#44717
A
will invite
B
is going to invite
C
will be invited
D
has invited
The earth is our home. It ______________ well.
#44581
A
must be protected
B
should protect
C
need protect
D
need protecting