The computers made by our company sell best, but several years ago no one could have imagined the role in the markets that they _________.

 —I’ll come to see your performance at 9:00 tomorrow evening.—I’m sorry, but by then my performance ____ and I ____ reporters in the meeting room.

--Were you late for the film? --Very late. Half of it         by the time we         the cinema.

Henry goes to a free class every Sunday afternoon which______at 4 pm.

We must work hard to      a good knowledge of English.