III. Underline the correct preposition. 15) Would you like some dessert \ desert?
16). Climate change affects \ effects the whole world.
17).These trousers are very loose \ lose.
18). Polar bears are under \ in threat.
19). The weather \ whether is becoming more and more rainy. 20) We will loose \ lose many species if rainforests continue to disappear. 21). No one can ignore the affects \ effects of global warming.
