16. Tom is a student and studies hard. ________ John.
A. So does B. So is C. So it is with D. So do 答：C。so it is with .. 或it is the same with ...表示某人也(或也不)。如： He is a student. So am I (或 So it is with me. /It is the same with me. ) He isn’t a student. Neither (Nor) am I. (也可说 So it is with me. /It is the same with me. ) 若含不同形式的谓语，只能用So it is with ...这样的句式来表达。 17. Not only_________ polluted but_________ crowded. A. was the city, were the streets B. the city was, were the streets C. was the city, the streets were D. the city was, the streets were 答：C。见第9题解析。 l8. So ___________ that no fish can live in it. A. the lake is shallow B. shallow the lake is C. shallow is the lake D. is the lake shallow 答：C。见第6题解析。 19. ______ for the free tickets, I would not have gone to the films so often. A. If it is not B. Were it not C. Had it not been D. If they were not 答：C。此题为虚拟语气的倒装形式。在虚拟语气中if it weren’t for(与现在事实相反)：if it had not been for(与过去事实相反)意为•多亏，要不是’。其倒装时，not总在“后。这一句式也可用but for来表示。 20. —David has made great progress recently. —_________, and A. So he has, so you have B. So he has, so have you C. So has he, so have you D. So has he, so you have 答：B。表示“某人也……”用倒装句式。表示“某人的确如此”不倒装。 21. Not until the early years of the 19th century ________ what heat is. A. man did know B. man knew C. didn’t man know D. did man know 答：D。“not until+状语”故在句首时，用倒装句式。