-We'll go to the party to be held in the Grand Theater at 8: 00tonight. Could you join us?-I'm afraid I can't. I __________ the paper with my instructor.
— Is Jay coming by bus? — He should, but he ____ not. He likes cycling along.
As we know, in the airport we’re ______ to smoke only in special areas.
It is estimated that nearly 100 million people live here, most of ______ in the west.
As for how to promote public education, Professor Li gave us a lot of suggestions which _____ reasonable and practical.
— ______ you finish your essay in time? — I am afraid ______.