1.After i had the message,i (go)to see him 2.I(not,see)Nam for a long time;I(see) him last 3 years ago 3.I saw an accident when I (cross) the street 4.The members of our club(play) tennis once a week 5.I came home when my father (read)books in his room 6. She(not,do)her homwork yet 7.They(complete) the bulding by the end of thí month 8.Our uncle(word) in that factory for 20 years now 9.Her hurband usually(have) tea for his breakfast

Tham khảo

`1` went

`->` After + S + V2/ed, S + V2/ed

`2` haven't - saw

- for a long time `->` HTHT : S + have/has + not + PII

- 3 years ago `->` QKĐ : S + V2/ed

`3` was crossing

`->` When + S + was/were + Ving, S + V2/ed

`->` Hành động đang xảy ra thì hành động khác xen vào

`4` play

`->` once a week - HTĐ : S + V (s/es)

`->` Chủ ngữ số nhiều - Động từ nguyên mẫu

`5` was reading

`->` Tương tự câu `3`

`6` hasn't done

`->` yet - HTHT : S + have/has + not + PII

`->` Chủ ngữ số ít - has

`7` will have completed 

`->` by the end of this month - TLHT : S + will + have + PII

`8` has worked

`->` for 20 years - HTHT : S + have/has + PII

`->` Chủ ngữ số ít - has

`9` has

`->` usually - HTĐ : S + V (s/es) 

`->` Chủ ngữ số ít - Động từ thêm s/es