----Are there any copies left in the book store?----Sorry. There are ____ if ______.
One of the requirements for the fire is that the material ________ to its burning temperature.
—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 _____.