20、—What made you decide to ______medicine?

—I’d always wanted to be a doctor, even as a child.

A．take up         B．go on        C． pick up            D．depend on

19、They have got everything ready to make a _____ across the Atlantic.

A．trip          B．travel         C．voyage              D．tour

18、The old couple preferred a flat in a small town to ____ in so large a city as New York.

A．one          B．it              C．this             D．that

17、The talk between the two leaders aimed at ending the long ______of war between the two countries.

A．sense          B．case            C．state              D．condition

16、__________ we can’t get seems better than ____________we have.

A．What, what        B．What, that         C．That, that        D．That, what

15、_________in 1636, Harvard is one of the most famous universities in the United States.

A．Being founded       B．It was founded        C．Founded      D．Founding

14、While building a tunnel through the mountains, _____________.

A．an underground lake was discovered

B．there was an underground lake discovered

C．a lake was discovered underground

D．the workers discovered an underground lake.

13、Dorothy was always speaking highly of her role in the play, _______, of course, made the others unhappy.

A．who         B．which         C．this           D．what

12、He is the only one of the students who __________ a winner of scholarship for three years.

A．is        B．are       C．have been         D．has been

11、Mary wanted to travel around the world all by herself, but her parents did not _______ her to do so.

A．forbid                 B．allow                   C．follow                   D．ask