The country has already sent up three unmanned spacecraft, the most recent _____ at the end of last March.
#99009
A
has been launched
B
having been launched
C
being launched
D
to be launched
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She explained it again to make herself _______ by the audiences.
#96934
A
misunderstand
B
misunderstood
C
misunderstanding
D
to misunderstand
The waiter greeted me with a big smile and _____ us by the window. 
#98748
A
seating
B
seated
C
to seat
D
being seated