1895. Some scientists say it is essential that mankind _______ the amount of air pollution in big cities. A. be reduced B. reduced C. reduce D. will reduce 1896. She couldn‟t but _____ there crying. A. stood B. standing C. to stand D. stand 1897. ______ where to find the key, the boy could not open the safe. A. Knowing not B. Knew not C. Not knowing D. Didn‟t know 1898. They received _______ advice from their parents that they became successful. A. so good B. such a good C. so good an D. such good 1899. Computers are said to be _______ for the development of mankind. A. here to stay B. neither here nor there C. here and there D. here today, gone tomorrow 1900. _ “She‟s the best pianist in the school.” _ “__________” A. That‟s that. B. Never mind! C. That‟s OK! D. You can say that again. 1901. The river divides the city __________ two parts. A. with B. between C. by D. into 1902. When I was young, I __________ to smoke or drink. A. wasn‟t used B. didn‟t used C. never used D. not used 1903. “Would you mind turning the fan on?” - “__________.” A. Yes, please B. No, thank you C. Not at all D. No, I‟m not 1904. __________ he gets to the airport, he‟ll check in his luggage. A. Wherever B. However C. Although D. As soon as 1905. I‟d like to __________ a three minute call to London. A. make B. phone C. set D. do 1906. Your mother never let you cook the meals, __________? A. didn't she B. did she C. doesn't she D. does she 1907. I wondered __________ the right thing. A. whether I was doing B. whether I am doing C. whether was I doing D. if I am doing