【正文】
groom A. is smoking permitted B. smoking is permitted C. smoking is it permitted D. does smoking permit practice 2) Not until the early years of the 19th century ___ what heat is. A. man did know B. man know B. C. didn39。t man know D. did man know A. 常考否定短語(yǔ)的倒裝: Not only…but also, Hardly/Scarcely…when, No sooner… than . 1. Hardly had she gone out when a student came to visit her. 2. Scarcely had I started to type my paper when the telephone rang. 3. No sooner had she gone out than a student came to visit her. 4. Not only did he refuse the gift, he also severely criticized the sender. B. ??挤穸ǘ陶Z(yǔ)的倒裝: in no case, in no way, on no account, at no time, by no means, under (in) no circumstances (決不 )置于句首,句子倒裝 Eg. no circumstances will he give up the plan. 2. At no time will china be the first to use neclear weapons