問題詳情：
(1) Dan Robinson has been worried all week. Last Tuesday he received a letter from the local police. In the letter he ____1___(ask) to call at the station. Dan wondered __2___ he was wanted by the police, but he went to the station yesterday and now he is not worried anymore. Five days ago, the policeman told him, the bicycle was picked up in a small village four hundred miles__3___. It is now being sent to his home by train. Dan was most surprised when he heard the was __4____(amuse) too, because he never expected the bicycle to be found. It was stolen twenty years ago when Dan was a boy of fifteen!
(2)__5__ average, there are 800 tornadoes in the US each year, __6___about 80 deaths and 1500 injuries. The worst tornado of all time ____7__ in 1925, affecting three US states: Missouri, Illinois and Indiana. By the time it ended, more than 700 people ____8_____(kill).
(3)With the ___9_____(develop) of industry, air pollution is getting more and more serious. In Beijing, many people suffer different kinds of ___10____ (ill) because of air pollution.
We should take some measures ___11____(fight) against pollution. We can plant more trees and make ___12___most of new fuel. If everyone realizes the __13___(important) of environment and _14__(do) something to stop pollution, the problem ___15___(solve).
【回答】
1-8 was asked, why, away, amused, On, causing, occurred, had been killed
9-15 development, illnesses, to fight, the, importance, does, will be solved.
知識點：語法填空
題型：未分類
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