Mrs Smith finds it hard to clear up the mess, as her children are always ________ whenever she tries to.
The meeting ________ in the hall tomorrow is about environment protection.
_________ teachers are present today, and __________ them is 300.
— You don’t forget when we borrowed that reference book, do you?— I can’t remember now but ________ sometime last week?
Mr. Johnson complained to his doctor that he lacked energy, so his doctor advised him to ________running.
— What about ______supper that we had in that restaurant last week? — Well, ____ most worst one indeed.