2. Bài tập bổ sung Ex 6. Write the correct tense or form of the verbs in brackets. 1. Until now, 38,000 people ___________________ (evacuate) from the flood-affected areas. 2. Typhoon Ketsana _______________ (now/ move) west, threatening to hit Central Vietnam in the Corning days. 3. About 500 ha of pine forests______________ (destroy) by a fire last month. 4. Can we predict when a volcano_________ (erupt)? 5. The crops failed because it________________ (not rain) all summer. 6. Forest fires _____________ (may/ start) by people or by lightning in storms. 7. A powerful earthquake (strike) ____________Southern California on Friday night. 8. Scientists do not use the term “tidal wave” because tsunami waves (not cause) _____________ by tides. 9. The Amazon_________________ (already/ lose) around 17 percent over the past 50 years. 10. I_____________________ (never/ experience) such a big earthquake before I_________ (go) to Java island. 11. Natural disasters can force people_________ (leave) their homes. 12. If you are trapped in a collapsed building, cover your mouth with a cloth to avoid ____________ (breathe) dust. Ex 7. Reorder the words to make full sentences. 1. the/ dangerous/ flood/ disasters/ in/ most/ world/ of/ the/ is/ one ________________________________________________________________ 2. many/ shelter/ had/ 9 o’clock/ their homes/ by/ people/ camps/ fled/ to/ already/ seek/ in. ________________________________________________________________ 3. be/ with/ people/ homeless/ will/ temporary/ provided/ accommodation. ________________________________________________________________ 4. a/ Friday/ by/ 6.9/ Indonesia/ magnitude/ was/ earthquake/ powerful/ on/ struck. ________________________________________________________________ 5. the earthquake/ hundreds/ completely/ of/ destroyed/ homes/ hit/ the City/ were/ when. ________________________________________________________________ 6. natural/ typhoons and floods/ the/ in/ most/ are/ frequent/ Vietnam/ disasters? ________________________________________________________________ 7. escape/ before/ people/ had/ to/ fire crews/ the fire/ arrived/ four/ managed. ________________________________________________________________ 8. property/ people’s/ disasters/ devastate/ destroy/ their/ lives/ natural/ and. ________________________________________________________________