Do you know what in the room at the moment?
#40168
A
they were doing
B
were they doing
C
they are doing
D
are they doing
推荐题目
His father ________ in the factory since he was twenty.
#42389
A
works
B
has worked
C
will work
D
was working
The fishermen knew little about the island when they there.
#42792
A
arrived
B
would arrive
C
arrive
D
have arrived
My best friend visited my house while I __ __ dinner in the kitchen.
#41582
A
cook
B
cooking
C
cooked
D
was cooking
-- Are you going to the party? -- No, because I ______.
#42738
A
have asked
B
haven’t asked
C
have been asked
D
haven’t been asked
A moment, please．I’m checking if Mr. Smith _________ free tomorrow．
#42733
A
is
B
being
C
to be
D
will be