I heard him______ outside.
#50192
A
sang
B
to sing
C
singing
D
sings
推荐题目
It’s seven in the morning. It’s time ___________.
#50207
A
go to school
B
going to school
C
to go to school
D
goes to school
You must be tired now. Why not ____ a rest?
#51081
A
to stop to have
B
to stop having
C
stop to have
D
stop having
It’s good for you healthy food and more exercise.
#49185
A
eat; taking
B
eating; take
C
to eat; take
D
eat; take