19. A：I called you at eight last night, but you weren’t home.
B：I was! I couldn’t answer the phone because I ________ my hair.
(A) had washed
(B) washed
(C) was washing
(D)have washed

答案：登入後查看
統計： A(0), B(0), C(1), D(0), E(0) #4004807