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 it 2. His wife had the carpets and the curtains cleaned, _? A. hadnt B. had C. didnt she D. did she 3.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 it 4.Harry wouldnt become a teacher if it hadnt been for the holiday, _