Some expensive drugs can be economical （ ）.

It was not known （ ） he had said during the interview.

No one except two servants （ ） late for the dinner.

He remembered （ ） the zoo by his father when he was little.

It is _____ one thousand students can live in it.

It is generally agreed that the Internet has brought people together （ ）.

Could you please _____ why you can’t come to attend the meeting?

Your children must stop （ ） me by asking for candy all day long. I am （ ） every day by the slow bus service in this town.

Fast food doesn’t seem like a good idea, for it is （ ）.

I have no objection （ ） your design for the new type of machine this time.

It is important that the boy （ ） an adult to take care of him.

You （ ） wear your glasses, for the words are rather small.