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