阿摩線上測驗
17. My parents _____ in the kitchen when the pizza man rang the doorbell.
(A) cooked
(B) have cooked
(C) be cooking
(D) were cooking
答案：登入後查看
統計： A(1), B(0), C(0), D(25), E(0) #3676296
統計： A(1), B(0), C(0), D(25), E(0) #3676296
