When I entered the room, I found a little boy _____ on his mother’s knees _____ to draw a picture.
#94504
A
seated; learning
B
sitting; to learn
C
seating; learning
D
sat; was learning
推荐题目
Most computer users think it necessary for their software ________ regularly.
#89719
A
to up date
B
to be updated
C
to have been up dated
D
to have updated
___________ his poem, he didn’t dare to submit it to the professor.
#94509
A
Not having polished
B
Having not polished
C
Not polished
D
Not being polished