2.2. They will leave as soon as the other passengers get on board. - S + will + V + as soon as + S + V 3.3. Mike has had to use crutches to walk since broke his leg playing football last week. - S + have/ has + V + since + S + V 4.4. When. ever Grace feels nervous, she will chew her nails. Ưhenever + S + V ( S + will + V. c). 6.6. The frying pan caught on fire while I was cooking fish at that time. - S + V + while + S + was/ were + V-ing. 7.7. Amy will be able to work more efficiently once she learns how to use a computer. - S + will + V + once + S + V 8.8. I have been late for work three times since my watch broke. - S + have/ has + V + since + S + V 9.9. The village will have no electricity until a new generator is installed. - S + will + V + until + S + V 10. We'll go out for a walk as soon as I finish working on the computer soon. - S + will + V + as soon as + S + V

$2.$ They will leave as soon as the other passengers get on board.

- S + will + V + as soon as + S + V (s/es).

- as soon as: ngay sau khi.

$3.$ Mike has had to use crutches to walk since broke his leg playing football last week.

- S + have/ has + V (Pii) + since + S + V (-ed/ bất quy tắc).

- since: kể từ khi ...

$4.$ Whenever Grace feels nervous, she will chew her nails.

- Whenever + S + V (s/es), S + will + V.

- Whenever: bất cứ khi nào.

$5.$ The first time I was speechless is when I saw the Great Pyramid of Egypt in the moonlight.

- S + V (-ed/ bất quy tắc).

$6.$ The frying pan caught on fire while I was cooking fish at that time.

- Kết hợp thì quá khứ đơn và thì quá khứ tiếp diễn để diễn tả một hành động đang xảy ra thì hành động khác xen vào.

  + Hành động đang xảy ra dùng thì quá khứ tiếp diễn: S + was/ were + V-ing.

  + Hành động xen vào dùng thì quá khứ đơn: S +  V (-ed/ bất quy tắc).

- S + V (-ed/ bất quy tắc) + while + S + was/ were + V-ing.

$7.$ Amy will be able to work more efficiently once she learns how to use a computer.

- S + will + V + once + S + V (s/es).

- once: ngay sau khi.

$8.$ I have been late for work three times since my watch broke.

- S + have/ has + V (Pii) + since + S + V (-ed/ bất quy tắc).

- since: kể từ khi ...

$9.$ The village will have no electricity until a new generator is installed.

- S + will + V + until + S + V (s/es).

- until: cho đến khi.

$10.$ We'll go out for a walk as soon as I finish working on the computer soon.

- S + will + V + as soon as + S + V (s/es).

- as soon as: ngay sau khi.