I didn’t hear you come in just now.— That’s good. We tried ____any noise, for you were sleeping.

It`s not easy _______ Chinese students _______Englishwell.

. It is said that his carelessness and ignorance together ________ a terrible fire, which burned down the building.

Natural disasters are dangerous! —Yes,________earthquake that happened in Philippines killed __________ number of people.

If you cheat in the exam, you can hardly _____it.