. —Have you paid your phone bill? — No, the bill is _____ at the end of the month.

Are you a teacher? —No, but I _______.

he can pass the entrance examination is quite uncertain

－ What a great success the exhibition was last night !－_______ , especially it ______ those who have a preference for the beauty of nature .

Nobody but doctors or nurses and those ________ by Dr Hu ________ to enter the patient’s room