Bài 1: Chia động từ trong ngoặc ở thì quá khứ hoàn thành 1. The storm destroyed the sandcastle that we (build). 2. He (not /be) to Cape Town before 1997. 3. When she went out to play, she (do / already) her homework. 4. My brother ate all of the cake that our mum (make). 5. The doctor took off the plaster that he (put on) six weeks before. 6. The waiter brought a drink that I 7. I could not remember the poem we (not/ order). (learn) the week before. 8. The children collected the chestnuts that (fall) from the tree. (he / phone) Angie before he went to see her in London? 9. 10. She (not/ ride) a horse before that day. 11. Kevin (go) home by the time I arrived. 12. Ethan suddenlyhealised that he 13. Mum was annoyed because I (leave) his laptop on the train. (not clean) my room. (they / study) English before they went to the USA? 14. 15. We were hungry because we (not eat).