Underline the appropriate time phrase and put the verbs into the correct tense. New research offers proof that global warming is a direct consequence of man′s activity on earth and not a result of some unidentified natural phenomenon. 1) (After/As soon as) noting climate changes on computer, researches 2) ……. (show) that the Earth′s average temperature has risen by 0.7 C 3) (before/since) the Industrial Revolution. 4) (While/As soon as) the results were published, climate changes once again 5) ………. (become) headline news. Other research predicts that 6) (by/by the time) the end of the century average rainfall will be 30% higher than today as a result of a warmer climate. Air pollution is blamed for a sharp rise in the Earth′s temperature and 7) (until/whenever) strict law 8) ……….. (be/introduced), the problem will continue to get worse. Something needs to be done 9) (the moment/before) it 10) …….. (be) too late. 11) (When/Whenever) EU countries 12) ………..(meet) last month, they agreed to cut down on pollution levels. 13) (Just as/Once) clean sources of power 14) ………… (be/developed), we will have taken the first steps towards stopping global warming.
Who did dry his hands carefully?
Who did like fish?
what did sound funny?
When did the students go to the class?
Where did he see aeroplanes flying?
Could he see an aeroplane in the sky?
Where the students were?
Did they understand the story very well?
Who did eat many ices?
What did artist draw?
What did Hob drink?
Where did Hob go?
What did the cows eat?
When did the boys see the sun rise?
Who did put their books on my desk?
Where did the cat go up?
Where did Tom see the cat?
Who did put her arms round Toms neck and kiss him?
What did Hob say?