When I got out of the room, I found someone _____________ the tree. 
#50126
A
climbing
B
to climb
C
climb
D
climbs
推荐题目
 I think this piece of music is  worth_______.
#49895
A
listening
B
to be listened to
C
listen to
D
listening to
When Miss Green asked us ________ silent, we stopped ________ at once.
#50132
A
keep; talking
B
to keep; talking
C
keep; to talk
D
to keep; to talk
The little girl is too frightened ____________ a word.
#50853
A
saying
B
to say
C
not to say
D
say