I. Give the correct form of the verbs in brackets to complete the sentences.
1. All people (go)________________________ down into the cellar for protection by the time the tornado (sweep)_______________________ through the town yesterday.
2. Hundreds of trees on streets in Ha Noi (fall)______________________ in a sudden storm last night.
3. I (not seen)_______________________ a more horrible flood than this since I (live)__________ in this area.
4. The tourists (camp)_________________________ near a peaceful river, when all of a sudden, the river (flood)________________ its banks and almost (destroy)________________ their campsite.
5. When the volcano (erupt)____________________ , people living nearby already (move)_____________________________ to safe places.
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Sinh Học lớp 12
