2012A1_Kiểm tra bài cũ

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

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

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

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

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

(she, graduate)__________ from university by 2030?

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

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trước khi (= before)