Is there a bus to the downtown? — There _____ be, for it is too late now. You’d better take a taxi. [ ]

The manager wants to see changes in the company，and I am sure he will ________.(2013·陕西，24)

Was it by cutting down staff _ _she saved the firm? —– No, it was by improving work efficiency.

Can you come to my birthday party—________.

Do you know what presents they will buy for our teachers on Teachers’ Day—No, they keep the secret to __________.