Bài tập 1: Chia động từ trong ngoặc ở thì Tương lai hoàn thành hoặc Tương lai hoàn thành tiếp diễn. 12.By this time tomorrow they (visit) ............Paris for the first time. 13.Tom is a first year student. By the end of next year, he (learn)............. chemistry for 3 years 14.By 2010, the number of schools in our country (double).................... 15.In twelve months time, the average income of our people in our country (rise)........... 5 percent, while inflation (not rise)............ at all. 16.I hope they (repair)............ the road which leads to Huong Vy and Dong Son commune by the time we come back next summer. 17.Roy cant ski better. I know by the end of this month, he (have)............. lessons for a full month. 18.By the time you arrive, I (write) ...............the essay. 19.By the year 2012 many people (lose) ....................their jobs. 20.By 5:30 p.m, we (sit)................ here for 3 hours. 21.In 10 more minutes, they (wait)............... for him for 2 hours. 22.Before he graduates from his university, he (stay).................. in HaNoi city for 4 years. 23.When she retires, he (work)............ for this factory for 30 years. 24.By the time we get to the nearest city, we (drive)............. for 5 days.