The woods and the newly dug river through the campus ________ the beauty of this world-known university．

A．add up

B．add to

C．are added up

D．are added to

These old pictures bring to their mind the college days ________ they spent together, ________ life was hard but happy．

A．which; when

B．when; which

C．which; which

D．when; when

Two men stood under a tree smoking and chatting for more than an hour, and then ________．

A．left

B．leaving

C．to leave

D．leave

He has always kept an ideal ________ due to constant and regular physical exercise．

A．body

B．figure

C．appearance

D．form

What a shame you didn't go to the airport to see Andrew off．You ________ there．You have been close friends for years after all．

A．might have been

B．could have been

C．should have been

D．must have been

－Adolescents' moral development ought to be paid more attention to as well as their mental development．

－________．

A．Exactly

B．Properly

C．Doubtfully

D．Simply

There is ________ Miss Doolittle waiting for you at the school gate, with ________ copy of Nature．

A．a；不填

B．不填；a

C．the; a

D．a; a

Nowadays the belief has become general ________ seafood and fruits rich in vitamin C should never be eaten at the same meal．

A．that

B．how

C．when

D．why

________ its mysterious and impressive story, the novel stayed as the best-seller for two weeks．

A．According to

B．Due to

C．Despite of

D．But for

－How many students, do you think, will be present at the speech?

－I expect ________ over 200 students then．

A．there being

B．there to be

C．there be

D．there been