16. ________with the size of the country, the number of population does not seem large at all.

　　A.Compared

　　B. Be compared

　　C.Comparing

　　D.Compare

　　【答案】A

　　17.Stephen Hawking has made another wonderful discovery, ________ of great importance to science.

　　A.which I think it is

　　B.I think which is

　　C.of which I think

　　4D.which I think is

　　【答案】D

　　18.We went to the nightclub last night, and we asked the waiter for________ and________.

　　A.two cups of tea ; four coffee

　　B.two teas; four coffee

　　C.two teas; four coffees

　　D.two cup of tea; four cup of coffee

　　【答案】C

　　19. The committee can't come to a decision, because________ at odds.

　　A.they are

　　B.it is

　　C.it has

　　D.they have

　　【答案】A

　　20.Engines to machines________ hearts to animals.

　　A.like

　　B.as

　　C. what

　　D.when

　　【答案】C