№1 choose the best options to fill in the gaps in the text: clouds play a powerful( warming and cooling our planet. even a one-percent change in cloud can have dramatic( global temperature. on the one( clouds spread out like global umbrellas, blocking the sun's heat energy and reflecting much of it( space. that cools the planet. but clouds can also act like giant blankets( heat radiating from earth. this( keep the planet warm and suitable for life. all life processes on earth depend on a balance( warming and cooling. if the balance shifts, the effects( disastrous. colder winters or hotter summers could threaten entire species of plants and animals, and force whole populations-humans included-to move to different latitudes. scientists are now studying clouds in an attempt to forecast( changes. they hope to( to many questions. |__№__ | 1 | part | role | place | | 2 | reason | effect | source | | 3 | side | view | hand | | 4 | out | back | round | | 5 | which | while | when | | 6 | has | helps | makes | | 7 | among | in | between | | 8 | could | must | should | | 9 | so | such | a | | 10 | look for | put | find | №2 choose the right words to complete the sentences: 1. they(can / away for the weekend but i'm not sure. 2. he(can / from sheffield,judging by his accent. 3. they(can' t / may be out! 4. with luck,tomorrow(can / a cooler day. 5. you(can / right but i'm going back to check the information. с этими ,буду !

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