Our music teacher is always heard _______ in the music room.
#50599
A
sing
B
sang
C
singing
D
to sing
推荐题目
The two children always disagree. They often argue about what TV programmes ______.
#48740
A
watching
B
to watch
C
watched
D
watch
.---What do parents in China want their children to do? --- Most parents expect to see their children_____ hard all day.
#48834
A
to study
B
studied
C
study
D
for study
John does important research _______ the best ways to help the old.
#48571
A
finds
B
finds
C
found
D
to find out