Shark - a silent terror

This task is about adding words to a text so that it makes sense.
 
shark
Image: (c) J.Fisher (2005) | PhotoKete

 

The following piece of writing has some spaces where words are missing.
 
First, read the whole piece of writing through to get an idea of what it is about. Then fill each space with ONE word so that the whole piece of writing makes sense. You are able to change answers as you go.

When you have filled in all the spaces, re-read the text to check that the whole piece of writing makes sense.

Question 1Change answer

Shark - a silent terror
 
Our boat sat motionless on the glassy surface of the atoll's lagoon. The lines we held dipped into the water and then fell 1 steeply towards the sandy bottom. 2 below I glimpsed patches of 3 colour as tropical fish flashed 4 the watery stage. Completely fascinated 5 the ever-changing display of marine 6, I'd almost forgotten the reason 7 our being there floating above 8 peaceful scene. Suddenly the stage 9 was empty. The silent actors 10 from sight. A silent grey ghost 11 appeared as if from nowhere. "12 him", I whispered as the 13 took on substance. My companion 14 to his feet in awe. 15 was what we had been 16 for. Below, now in full 17, was the terror of the 18 – a monstrous tiger shark. The 19 creature knifed toward our baited 20. I shuddered at the sight 21 the shark's cruel mouth as 22 circled our lines. Then, as 23 taking up our challenge, it pounced on the unfortunate fish I'd  24 as bait. There was a 25 of blue in the water; 26 line snapped taut. He was 27. The fight was on.