1) If you a) heat b) heatd c) heating 2) lf they a) climp b) climping c) climbed 3) Unless you a) Stop b) Stopeed c) Stoping 4) water to 100c it a) boils b) boll c) boling 5) up to 4.000meters,thay..oxygen  a) need b) needing c) needed 6) spending ,you …completely broke before a) will be b) will bening c) will

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