1.Those elephants,__ come from Africa, can live until they are seventy. A. they B. that C which D. they which 2.Ha Noi,__I live, lies on the Red River A. which B. that C. in where D. where 3.Bill Gates,__ is known as the King of computer programs, is famous for his charity work A. that he B. that C. who D. whom he 4.Dr. Thomson,__ I hadn't seen before, entered the room. A. whom B. that C. which D. whose 5.The subject__ we are going to discuss is very important A. that. B. which. C.what. D. A and B 6.The city__ we came to visit was very beautiful A.where. B.which. C.what. D.whose 7.Anyone__ touches that electrical appliance will get an electric shock A.who. B.that he. C.where. D.he 8.He showed me his car,__brakes have a problem. A. that B. whose C. who D. which 9.The woman__ i was looking smiled. A. on whom B. who C. at whom D. with whom