双重所有格练习1.Iateall_sandwichesyesterday.( I )CanIhaveoneof_? ( you )2.Theteacherwantsyoutoreturnthatbookof_. (he)3. Mr.andMrs.Greenandafriendof_arecomingtoseeus. ( they )4. WearegoingtoParistostaywithaFrenchfriendof_. (we )5. The teacher wants you to return that book of_. (he)6. Mr. and Mrs. Green (男人名) and a friend of _ are coming to see us. (they)7. We are going to Paris(巴黎) to stay with a French(法国) frien