问题

While we were running on the playground, Jack suddenlystopped____ and lay on the ground,so we all stopped_____ what was wrong withhim.
A:to run; tosee
B:running;seeing
C:考点:非谓语动词
D:running; see
B:running;seeing
C:考点:非谓语动词
D:running; see
正确答案是: