Question

It was a bright day in July, but inside the Son Doong C_ _ _ it was very dark and cold. 2 It's a s_ _ _ _ climb to the top of Ben Nevis in the Scottish Highlands, but the view is worth it.
3 Angel Falls, on the Guaja River in Venezuela, is the highest w_ _ _ _ _ _ _ _ in the world.
4 During the day, the temperature in the Sahara d_ _ _ _ _ can reach 50°C, but at night it sometimes falls to below 0°C.
5 The beautiful White C_ _ _ _s of Dover are very high and it’s dangerous to walk too close to the edge.
6 ,butit’squitedeepinthemiddle.
7 Over 1,500 people lost their lives in the early morning of 15 April 1912 when the Titanic sank in the i_ _ waters of the North Atlantic Ocean.
8 You can collect seashells from the s_ _ _ _ in the Maldives, but you can’t take coral pieces.