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7 tháng 12 2021

29.Lighting (strike) ………stroke…………… the tree that they (shelter) 
…………sheltered…………under. Of course, they (have) …………had…… a 
terrible fright, but they (be) ………were……… very lucky. No harm 
(come) ………came……………to them at all.
30.When I (arrive) …arrived……at his house, he still (sleep) ………was still sleeping……….
31.The light (go) ……went………………out while we (have) 
……were having………………dinner.
32.Bill (have) …was having…………breakfast when I (stop) …stopped………… at his 
house this morning.
33.As we (cross) ………were crossing……………the street, we (see) …saw……………… 
an accident.
34.Tom (see) ……saw……… a serious accident while he (stand) 
………was standing……… at the bus stop.
35.While my father (read) ……was reading………… a newspaper, I (learn) 
………was learning…… my lesson and my sister (do) ………was doing……… her 
homework.
36.The children (play) ……were playing……… football when their mother (come) 
…………came…back home.
37.The bell (ring) ………rang………while Tom (take) ……was taking……… a bath.
38.I (be) …was……very tired because I (work) was working……… all day yesterday.
39.He (sit) …………was sitting…in a cafe when I (see) …………saw……… him.