When Jane fell off the bike, the other children ___________.
A.were not able to help laughing B.could not help but laughing C.could not help laughing D.could not help laugh正确答案C
When Jane fell off the bike, the other children ___________.
A.were not able to help laughing B.could not help but laughing C.could not help laughing D.could not help laugh正确答案C