Question

   1.        Chia động từ trong ngoặc với thì Quá khứ hoàn thành và Quá khứ đơn

          1.1.        Almost everybody (leave)………………by the time we (arrive)……………………

          1.2.        He (wonder)………………whether he (leave)……………… his wallet at home.

          1.3.        The secretary (not leave)……………………….until she (finish)…………………her work.

          1.4.        The couple scarcely (enter)………………… the house when they (begin)…………………to argue.

          1.5.        The teacher (ask)……………… the boy why he (not do)………………his homework.

Answer 1

 1.        Chia động từ trong ngoặc với thì Quá khứ hoàn thành và Quá khứ đơn

          1.1.        Almost everybody (leave)………had left………by the time we (arrive)………arrived……………

          1.2.        He (wonder)………wondered………whether he (leave)……had left………… his wallet at home.

          1.3.        The secretary (not leave)………didn't leave……………….until she (finish)………had finished…………her work.

          1.4.        The couple scarcely (enter)……entered…………… the house when they (begin)………began…………to argue.

          1.5.        The teacher (ask)……asked………… the boy why he (not do)………hadn't done………his homework.