The thought came to him ________ he should immediately leave the hotel.
#67925
A
if
B
what
C
that
D
as
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 While watching television, ________.    
#68458
A
the doorbell rang
B
the doorbell was rung
C
we heard the doorbell ring
D
we heard the doorbell rings
Though the key was pressed, nothing ______ on the screen.
#41230
A
appeared
B
was appeared
C
appears
D
is appeared