精选优质文档-倾情为你奉上1. I dont think that the necklace is made of diamond, _?A. do I B. do you C. isnt it D. is it2. His wife had the carpets and the curtains cleaned, _?A. hadnt B. had C. didnt she D. did she3.Its my sons wedding next week, and I have to do my best for that,_ ?A. havent I B. dont I C. dont he D. isnt itA. would he B. had it C. would it D. had he5. No one left here yesterday,_