Урок по термодинамики который позволяет вам тщательно изучать эту тему с помощью интересных материалов
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«Основы термодинамики»
Underline the correct phrase. If either is possible, underline them both.
1 Unless it had been I If it hadn't been for my friends, I wouldn't have got the job.
2 You'll be really sorry unless you take I if you don't take the opportunity.
3 Unless we cut I If we don't cut resource use and waste, we face a decline in the quality of our lives.
4 The workers have threatened to go on strike unless they are given I if they're not given a pay rise.
5 Unless we hear from you I If we don't hear from you we'll expect you around 12.30.
6 I must get on with my work - unless you want I if you don't want to help me.
7 The club will have to close unless we can attract I if we can’t attract more members.
8 He wouldn't have failed his exams unless he had I if he hadn't been ill.
9 What will you do unless you go I if you don't go away for the weekend?
Write whether or if/whether in these sentences.
1 It was a good opportunity to ask Charles………… he shared my views.
2 When I saw his face I didn't know…………. to laugh or cry.
3 There is some question as to………. the public should be told about the accident.
4 It was too dark to tell …………..she was awake or asleep.
5 ………….they continue to work for us depends on how much we can pay.
6 She briefly considered………. she should call the police, but then walked away.
7 It remains to be seen…………… he can win in a major competition.
8 She couldn't make up her mind about …………..Jack had stolen the money.