Giúp m vs PUT THE VERB IN BLANKETS INTO THE SIMPLE PAST, THE PAST CONTINUOUS OR THE PAST PERFECT 13. Yesterday Tom ..............................(meet) an old friend when he ............................. (walk) to the store before he ........................................(go) home. 14. What ................................................ (you, do) at 6p.m yesterday? 15. Before she ............................. (watch) TV, she ..................................... (finish) her homework. 16. When I ............................... (arrive) his house, he ................................ (sleep) although I ........................... (call) her before. 17. The children ..................................... (keep) playing football although their mother .......................... (tell) them to stop. 18. The teacher ...............................(tell) us that he ................................. (visit) ................................ England three times by 1995. 19. Why ......................................... (they, not, visit) us when they ........................................... (stay) in London? 20. I ............................. (be) very tired because I ................................. (work) all day yesterday. 21. My father .............................. (watch) a newspaper and my mother ....................................... (watch) TV when a mouse .......................... (run) pass and ............................... (startle) them. Although he ...................................... (practice) this speech a lot of times before he ............................ (go) to see her but he still ........................... (fell) nervous.