Do the crossword puzzle. Clues across 1 A man-made underground passage through a hill or under a river. 5 букв 2 A place to hide in a mountain. 3 буквы 3 To put things on the boat. 3 буквы 4 Very big. 7 букв 5 Difficult to walk or stand on because it is wet. 7 букв Clues down 6 A special underwater boat. 8 букв 7 An optical instrument with a lens fir each eye used to look at far-away objects. 9 букв

4.enormous6.submarine1.tunnel3.make