The old man, _____ abroad for twenty years, is on the way back to his motherland.

[　　]

A．to work　　　　　　　B．working

C．to have worked　　　　D．having worked

Never _____ faith in himself, the scientist went on with his research.

[　　]

A．losing　　　　B．to lose

C．lost　　　　　D．to be lost

Rainforests _____ and burned at such a speed that they will disappear from the earth in the near future.

[　　]

A．cut　　　　　　　　B．are cut

C．are being cut　　　　D．had been cut

Carol said the work would be done by October, _____ personally I doubt very much.

[　　]

A．it　　　　　　　 B．that

C．when　　　　　　D．which

It was about 600 years ago _____ the first clock with a face and an hour was made.

[　　]

A．that　　　B．until

C．before　　D．when

_____ good, the food was soon sold out.

[　　]

A．Tasted　　　 B．Being tasted

C．Tasting　　　D．Having tasted

The latest data put forward by the states suggested that the business _____ improving.

[　　]

A．was　　　　　B．be

C．being　　　　 D．should

Finding a job in such a big company has always been ____ his widest dreams.

[　　]

A．under　　　　　　B．over

C．above　　　　　　D．beyond

When he left _____ college, he got a job as _____ reporter in a newspaper office.

[　　]

A．／; a　　　B．／; the

C．a; the　　　D．the; the

In some parts of London, missing a bus means _____ for another hour.

[　　]

A．waiting　　　　　　B．to wait

C．wait　　　　　　　D．to be waiting