The Quality Control Staff is responsible _____ the quality of the products that come out of the factory.

He （ ） by his sister at that moment.

Her passionate voice was always influential and （ ）.

Encouragement is sometimes much more_____than criticism.

She is a very _____ secretary; she almost never forgets anything or makes a mistake.

It is the third time that she has won the race, _____ surprised us all.

Look， here （ ） the famous pop singer.

He kept silent, so I couldn’t know （ ） he agreed （ ） not.

Millions of Americans take vitamins and minerals, （ ） that these pills can help to prevent serious illnesses.

Don’t get off the bus （ ） it has stopped completely.

None of us has a clear idea about _____ to do.

By this time next week, the winners _____ their awards.