The students couldn't help____when they heard the joke.A to

The students couldn't help____when they heard the joke.A to 4.The students couldn't help ______ when they heard the joke When he heard the joke,he couldn't help___(laugh) They couldn't help ______when they heard the news. When they heard the bad news,they couldn`t help ____ . thinking of the joke,she couldn't help laughing. They couldn't find anyting ____ at the moment A.eat B.to eat she couldn't ___her words___by the students I heard you went to the museum yesterday and couldn't find _ 英语改错 “He couldn't help to cry when he heard the news” she couldn't help （）when she heard the news ______,they couldn't solve the mystery