问题
When I entered the room, I found a little boy _____ on his mother’s knees _____ to draw a picture. [ ]
A: seated; learning
B: sitting; to learn
C: seating; learning
D: sat; was learning
B: sitting; to learn
C: seating; learning
D: sat; was learning
正确答案是：
同类题型
Could I use your car tomorrow morning?—SureI ______ a report at home
I’m sorry I ______ my exercise book at home. —Don’t forget _______ it to school tomorrow, please.
From my point of view, the theory that ______ by the scientist is not quite scientific. [ ]
May I go swimming this afternoon —-I’m afraid not _______ you have finished your homework.