Which of the two cows ______you keep produces more milk?

A.  that  B.  which   C.  whom  D.   what

Who____know him would believe him?

A.  whom   B .that  C.  which  D.   who

Watch the girl and her dog ___ are crossing the bridge.

A.  which B.  who C.  they D.   that

Last year we visited the Summer Palace, _____is one of the most beautiful places in Beijing.  

A. where  B. which    C. in which   D.  that

The college students asked the soldier everything _____he saw at the front.

A. that          B. which           C. what            D.  all what

The washing machine _____last Wednesday works well.

A. I bought       B. I bought it     C. which I buy     D.  that I bought it

The skirt is Ann’s _____color is blue.　

A. it’s B. whose C. who’s D. that

The girl ______aunt is a famous singer is fond of music.

A. who      B. whom    C. that     D.  whose

That is the office ______Lincoln once worked in.

A. where     B. which      C. what     D.  in which

The person ______talking to the shop assistant is an engineer.

A. who is    B. what is    C. whom is    D.  who you are