25、It is important that I _____ with Mr. Williams immediately.

A. speak　　                    B. spoke                      C. will speak　　　　      D. to speak

24、The lady said she would buy a gift for her daughter with the _______.

  A. 20 dollars remained     B. remaining 20 dollars

  C. remained 20 dollars     D. 20 dollars to remain

23、 Not until the early years of the19th century _____ what heat is. 
A. man did know             B. man knew  
C. didn’t man know       D. did man know

22、I hate ________ when one talks to me while looking in another direction.

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

21、 Since you have come so far with your experiment，you     carry it through to the end.

A. may                    B. might                     C. may well                     D. may as well

20、In the market, the merchants       and joked with the customers-

A. debated               B. bargained                C. quarreled                     D. argued

19、―Hurry up，or there will be a long queue to buy the tickets

―Don’t worry, they can be       at any time these days-

A. available             B present                     C. acceptable                   D reasonable

18、 It is widely accepted that young babies learn to do things because certain acts lead to     

A. rewards               B. prizes                     C. awards                        D. results

17、At first it was hard for me. By October, I had finally         far from home.

A. adjusted to be        B. adjusted being         C. adjusted to being           D. adjusted be

16、       the law, people are fined for speeding in the country.

A. In exchange for     B. In terms of              C. In the eyes of             D. In case of