Anna is often heard ______songs in her room.                            
#97522
A
sung
B
singing
C
sing
D
to sing
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He allowed me ____ the experiment.
#98820
A
to do
B
do
C
doing
D
did
The class __________ 80 students is hard to manage.
#93034
A
making up of
B
consists of
C
consisting of
D
made up
________with fright, a hungry fox hid himself in a small cave, ________his tail to the rain. 
#97406
A
Trembling; exposing
B
Trembled; exposed
C
Trembled; exposing
D
Trembling; exposed
The, __________at 7:30 pm last night, was followed by a brief dinner. 
#94258
A
started
B
to be started
C
to start
D
starting