— Did you happen to see _______ black and _______ white cat?

    — Are they missing? I told you to take care of them.

    A. a; 不填     B. the; 不填     C. the; the    D. a; the

— Did you happen to see _______ black and _______ white cat?

— Are they missing? I told you to take care of them.

A. a; 不填     B. the; 不填 C. the; the       D. a; the

— Did you happen to see _______ black and _______ white cat?

— Are they missing? I told you to take care of them.

A. a; 不填           B. the; 不填  C. the; the              D. a; the

— Did you happen to see _______ black and _______ white cat?

— Are they missing? I told you to take care of them.

A. a; 不填     B. the; 不填 C. the; the       D. a; the

— Did you happen to see _______ black and _______ white cat?

— Are they missing? I told you to take care of them.

A. a; 不填　　　　　　　　　 B. the; 不填

C. the; the　　　　　　　　 D. a; the