Complete each sentence with an appropriate word. The first letter of each word is given. 1. The fish have died because the river water is heavily p________. 2. Health e________ from air pollution include lung cancer, and respiratory diseases. 3. Acid rain causes serious d________ to plants and trees. 4. If the air wasn’t dirty, Nick w________ sneeze so much. 5. The main gases that l________ to acid rain are sulfur dioxide and nitrogen dioxide. 6. There is a danger of serious contamination from radioactive w________.​ 7. Hundreds of d________ fish were found floating in the river near the factory. 8. U________ sewage can spread disease and contaminate drinking water sources.

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BÀI 1 16/ The children are busy (collect) _________ shells on the beach. 17/ The teacher promised (help) _________ us (prepare) _________ for the examination. 18/ We regret (say) _________ that the lecture was dull and wasn’t worth (listen) _________ to. 19/ There’s no (deny) _________ that he enjoys (listen) _________ to his own voice. 20/ Is (boil) _________ or (fry) _________ the best way of (cook) _________ this fish ? 21/ It’s no use your (ask) _________ him (lend) _________ you any money. 22/ Can you manage(finish) _______ (write) ______ these reports by yourself ? 23/ He advised me( consider) _____ all the facts before (decide) _____ (accept) _____ the job. 24/ They refused (allow) _____ us (go) _____ in without (sign) ______ the book. 25/ My uncle used to (show) _________ me where (go) _________ and what (buy) ________. 26/ There’s nothing like (walk) _________ as a means of (keep) _________ fit. 27/ Your doctor advised (go) ____ to bed early, so I really can’t understand your (want) ____ (stay) ____up late. 28/ We considered (give) ____her a dress for her birthday, but couldn’t help (buy) _____her some flowers, too. 20/ Would you mind (keep) ______ quiet for a moment ? I’m trying (fill) _________ in a form. - It’s no use (ask) _____ children (keep) ____ quiet. They can’t help (make) _________ noise BÀI 2 Rewrite the following sentences 13/Please don’t interrupt me all the time. -Would you mind_______________________________________________? 14/I would like you to help me to put the chairs away? - Do you mind_________________________________________________? 15/I’m quite happy to look after the baby for you. -I don’t mind __________________________________________________ 16/ “ I haven’t done anything wrong,” Tom said. -Tom denied __________________________________________________ 17/The driver of the car said it was true that he didn’t have a licence -The driver of the car admitted_____________________________________ 18/I remember someone telling me the news. -I remember being_______________________________________________ 19/Are you sure you paid those bills yesterday? -Do you remember ______________________________________________? 20/Don’t forget that you have to do this homework. -Please remember ______________________________________________ 21/She really didn’t want to upset him so she kept quiet. -She was anxious to avoid _________________________________________ 22/Don’t ask so many questions. -Please stop ____________________________________________________ 23/I think we’ve discussed phrasal verbs enough now. -Let’s stop______________________________________________________ 24/He hasn’t smoked for 3 years. - He stopped___________________________________________________ 25/They haven’t played chess for a long time. -They stopped ___________________________________________________