You can’t imagine what great trouble they have _________ the problem_______.
#95579
A
to solve; being talked about
B
solving; discussing
C
to solve; to talk about
D
solving; being discussed
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When the sun _____ in the east, the little hero tried hard ______ the red flag to the top of the pole.
#94279
A
rising… to rise
B
rose… to raise
C
raise… to rise
D
rising… raising
The new couple got ____of the long ______play, and they went out of the theatre.
#95776
A
tired; boring
B
tired; bored
C
tiring; boring
D
tiring; bored
At the beginning of class, the noise of desks _____ could be heard outside the classroom. 
#98029
A
opened and closed
B
to be opened and closed
C
being opened and closed
D
to open and close