1. If you had been paying attention, you ______ what to do.
(A) had known
(B) knew
(C) would have known
(D) know

答案：登入後查看
統計： A(27), B(20), C(213), D(26), E(0) #564234

詳解 (共 1 筆)

#1133387
If條件句：had been paying（過去完成）
結果句：would have p.p
4
2