Try to spend your time just on the things that ________．

A．deserve doing

B．worth being done

C．deserves to be done

D．worth doing

It was in the factory ________ produced TV sets ________ I got to know my friend．

A．which; which

B．that; which

C．that; that

D．where; that

________ by the beautiful toy, the boy stared at it for a long time．

A．Attracted

B．Attract

C．Attracting

D．To attract

________ all the inventions have in common is ________ they have succeeded．

A．What; what

B．That; that

C．What; that

D．That; what

Hardly ________ the house when he was caught．

A．the thief had entered

B．entered the thief

C．had the thief entered

D．was the thief entering

People who are cheerful and relaxed are less ________ to suffer from colds．

A．possible

B．probable

C．likely

D．possibly

The boy I consider ________ cheated in the exam．

A．to be honest

B．being honest

C．that is honest

D．having been honest

A small plane crashed into a hillside five miles east of the city, ________ all four people on board．

A．killed

B．killing

C．kills

D．to kill

________ of time and energy have been spent in investigating the murder．

A．A great deal

B．A good many

C．Large numbers

D．Large amounts

Jake is late again．It is ________ of him to keep others waiting．

A．normal

B．ordinary

C．common

D．typical