阿摩線上測驗
22. Sunny : Where were you in the afternoon? I called you five times.
Albert: Oh, I __________my brother prepare for his exam tomorrow.
(A) was helping
(B) have helped
(C) am helping
(D) will help
答案：登入後查看
統計： A(203), B(19), C(16), D(15), E(0) #3149099
統計： A(203), B(19), C(16), D(15), E(0) #3149099
