The solider had qualified as a doctor, but later he gave up the ________ of medicine for full-time training．

A．fight

B．treatment

C．practice

D．design

Nowadays students go to key universities just for a formal ________, which may help them hunt for a suitable job in the future．

A．conservation

B．preparation

C．graduation

D．qualification

Remember to wake me up at 5∶30 tomorrow morning if I ________．I have to catch the early bus

A．will sleep

B．will be sleeping

C．Sleep

D．am sleep

Look before you leap! Why not ________ the advantages against the risks before you start?

A．weigh

B．match

C．Defend

D．fight

The head teacher entered the classroom with the message ________ some of my classmates failed in the latest exam．

A．when

B．which

C．that

D．as

China's populaion is expected to increase to about 1.5 billion in 2040, ________ it will start to decline slowly．

A．after that

B．since when

C．on which

D．after which

As the Dragon Boat Festival is drawing near, tourism is to start ________．

A．running off．

B．going off

C．taking off

D．breaking off

Many of his colleagues turned a deaf ear to his advice, ________ they knew it to be valuable．

A．as if

B．now that

C．even though

D．so that

The Town Hall ________ in the 1880's was the most distinguished building at that time．

A．completed

B．having been completed

C．to be completed

D．being completed

The earthquake having caused millions of familieshomeless,there should be no ________ in sending there the medical materials．

A．doubt

B．delay

C．hesitation

D．problem