While we were running on the playground,Jack suddenly stopped ___________ and lay on the ground,so we all stopped ___________ what was wrong with him.
A.running; to see | B.running; seeing |
C.to run; to see | D.to run; seeing |
While we were running on the playground,Jack suddenly stopped ___________ and lay on the ground,so we all stopped ___________ what was wrong with him.
A.running; to see | B.running; seeing |
C.to run; to see | D.to run; seeing |