While we were running on the playground, Jack suddenly stopped____ and lay on the ground,so we all stopped_____ what was wrong with him.
#49553
A
to run; to see
B
running; seeing
C
running; to see
D
running; see
推荐题目
Susan tries ________ English. But she often forgets ________her English book. 
#50298
A
to learn,to bring
B
to learn,brought
C
learning ,bringing
D
Learning, to bring
Why not___ your teacher for help when you can’t finish ___ it by yourself?
#51100
A
ask; write
B
to ask; writing
C
ask; writing
D
asking; write
Linda is good at _______ the piano.
#50746
A
play
B
to play
C
playing
D
plays
What’s the best way        a  foreign language ?
#49559
A
learn
B
learning
C
to learn
D
learns