2012A1_Kiểm tra bài cũ

By 10 a.m. tomorrow, she (finish) (a)   her exam.

They (build) (a)   the new bridge by the end of this year.

I (work) (a)   here for 5 years by next month.

By the time you arrive, we (leave) (a)   .

BJohn (not, write) (a)   his first book before he turns 30.

(she, graduate) (a)   from university by 2030?

My parents (not, return) (a)   from their trip by this weekend.

chú ý, nhận ra

(a)  

phương hướng

(a)  

trước khi (= before)

(a)