——I’m sorry that I didn’t work out this problem. ——It’s ___________our ability. I didn’t work it out, too.
Do remember to be ________. We must avoid any possible risks when doing this dangerous chemical experiment—burns, poisonous gases or cuts from broken tubes.
All the settlers nearby demanded that the night club away as soon as possible.
It _____ to chat online all day long. You’d better do something else.
For a moment nothing happened. Then all shouting together.
The police ________ Tom of stealing and the accused was afraid to meet the accuser.