_____ in the queue for half an hour, Tom suddenly realised that he had left his wallet at home.
—What courses are you going to do next term?—I don’t know. But it’s about time ________ on something.
—Yang Liwei has won great honour for our country. —Who is Yang Liwei?—What a question! It is surprising that ________ the first spaceman in China.
Mr Li required the computer equipment referred ________ used in every classroom.
— May I stop here? — No, you _____.
Please open the window, _____?