Helen ________ her keys in the office so she had to wait until her husband ______ home.

Helen ________ her keys in the office so she had to wait until her husband ______ home.

Helen ______ her keys in the office so she had to wait until her husband ______ home.

   A. has left; comes                    B. left; had come

   C. had left; came                     D. had left; would come

Helen ____ her keys in the office so she had to wait until her husband ___ home.

A. has leftl comes   B. left; had come   C. had left; came   D. had left; would come

Helen      her keys in the office so she had to wait until her husband      home.

A. has left; comes   B. left; had come

C. has left; came    D. had left;would come

Helen ______her keys in the office, so she had to wait until her husband ______home.

A.had left;comes　　　　　　　　　 B.left;had come

C.had left;came　　　　　　　　　 D.had left;would come

Helen ________ her keys in the office so she had to wait until her husband ______ home.

　 A. has left; comes B. left; had come C. had left; came D. had left; would come

Helen ________ her keys in the office so she had to wait until her husband ______ home.

A. has left; comes      B. left; had come        C. had left; came     D. had left; would come

Helen ______ her keys in the office so she had to wait until her husband ______ home.

Helen ______ her keys in the office so she had to wait until her husband ______ home.

[　　]

A．has left, come

B．left, had come

C．had left, came

D．had left, would come