She looked unhappy because she had made ______ mistakes in the English test.

1. A.
   two scores
2. B.
   scores of
3. C.
   two scores of
4. D.
   score of

She looked unhappy because she had made ________ mistakes in the English test.

A．two scores        B．scores of   

C．two scores of         D．score of

She looked unhappy because she had made ________ mistakes in the English test.

A．two scores            B．scores of

C．two scores of          D．score of

She looked unhappy because she had made ________ mistakes in the English test.