Iwould like to live on mars although/despite the harsh climate. 2. there might be life on other planets, however/yet we may never know. 3. the sciense-fiction story was both/though exciting and frightning. 4.some bacteria are more and more deadly. nevertheless/what is more, the medicine we have doesn't kill them. 5 technological advances can do great things for humantly. however/what's more, we should be careful they don't destroy the planet. 6.aliens must exist somewhere because/though there are so many other stars and planets. 7.i think humans will travel into space although /despite it will be very dangerous.​

1. Despite

2. However

3. Both

4. What is more

5. However

6. Because

7. Although.

Объяснение:

1, 7 - we use although when there is the subject and the predice; we use despite when there is no predicate

2, 5 - we use however to show contrast between sentences

3 - both is used because the story is exciting and the store is frightening (both variants at the same time); though is used to object the previous information

4 - what is more is used for additional information; nevertheless is used to contrast two opinions, points of view, features and so on

6 - because is used for showing the causes of some actions or facts, in order to expain them