第十三章测试1._____, both his father and mother died.
A:At the age of six B:He was six years old C:Being six years old D:When he was six years old
答案:D
2.Please pick out the incorrect sentence.
A:Physics include mechanics, heat, light, etc. B:His family is well known in this country. C:The public were not allowed to hear trial. D:Poultry is expensive at this time of year. 3.Professor Johnson is said ___some significant advance in his research in the past years.
A: having made B: to make C: making D: to have made 4.The house was very quiet, ___ as it was on the side of the mountain.
A:being isolated B:isolated C:having been isolated D:isolating 5.I was to have made a speech if ____.
A:I was not called away B:I had not been called away C:nobody called me away D:nobody would have called me away 6.Historians are still mystified by the question____ some ancient civilizations disappeared suddenly in history.
A:how B:is how C:that D:that is 7.Please find out the wrong sentence. ( )
A:In order to prevent cheating, the test questions are kept secret. B:The test questions are kept secret so as to prevent cheating. C: So as to get there in time, they started early. D:They started early in order to get there in time. 8.Which is the book ______you bought yesterday?
A:what B:that C:which D:the one 9.Only in a few countries __________ a reasonable standard of living.
A:the whole of the population will enjoy B:does the whole of the population enjoy C:will enjoy the whole of the population D: the whole of the population enjoys 10.Although ____before the war, the engine is still in perfect order.
A:to build B:Being built C:built D:building
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