Choose the correct words to complete the sentences. 1 The sea is very shallow / deep here, so only go into the water if you’re a good swimmer. 2 The man was close to the volcano / waterfall when it erupted. 3 We can’t jump across this stream because it’s very narrow / wide. 4 Stay away from that mountain / cliff – it’s easy to fall! 5 This road is very rocky / icy in winter, so don’t trip.