—I find it very difficult to read ________ novel you lent me last week.—Yes.It's necessary to have ________ good knowledge of history.
The bus came after I _____ for about half an hour.
I saw that he _____ at seven o’clock last night.
I didn’t go to see the film because I _____ it.
Did you ask the teacher what _____ this afternoon?
Who _____ to school earliest in your class every morning?