They tried to keep this____happening.

They tried to keep this____happening. I tried to keep the room being clean对? they tried to set the Embassy on fire. they tried to ___ Have they tried to send information to us?不定式 tried to 在这里做什 they tried hard to repair the damaged car they tried their best to cheer uop those unfortunate people they tried to find themselves a larger house They tried to_____me_____that step.A.discourage...to take B. They tried to silence the _____ audience but in vain. they tried to find out_________the new train had gone. They tried to make the__audience calm down,but in vain. tried to mean enough to him to keep the man at home.其中mean e