`Q1.` Some countries need the money to help their people survive.

`-` Dẫn chứng: Dòng `1,2,3` (Travel and tourism are very important to millions of people over the world. [...] Some countries need the money to help their people survive.)

`Q2.` Planes, buses. boats and other means of transportation that carry travellers and tourists cause pollution.

`-` Dẫn chứng: Dòng `5,6` (However, travel and tourism have negative aspects. Planes, buses. boats and other means of transportation that carry travellers and tourists cause pollution.)

`Q3.` Many travellers use a lot of water and electricity when they stay in hotels.

`-` Dẫn chứng: Dòng `7,8` ([...], many travellers use a lot of water and electricity when they stay in hotels.)

`Q4.` Some tourists end up leaving large amount of waste behind because it is often difficult or impossible for travellers to recycle items.

`-` Dẫn chứng: Dòng `9,10,11` (On top of that, it is often difficult or impossible for travellers to recycle items, so they end up leaving large amount of waste behind.)

`Q5.` We shouldn't throw rubbish on streets, beaches or in the countryside. We shouldn't use too much water or electricity. We shouldn't buy any products made from endangered species; sea turtle shells or bags made from reptiles or other animals.

`-` Dẫn chứng: Đoạn cuối

`+` shouldn't + V-inf: không nên

`-----------`

$\color{yellow}{\lll \text{NhatHuy}
\color{orange}{\text{ThichChoiLiqi} \ggg}}$