Task 3. Read the text about a very famous anti-tank barrier. Fill in the gaps with the correct forms of the words written in capitalized letters.
The Czech hedgehog (TO BE) a trap made of three metal (A BAR)
bound together. The Soviet Union (TO USE) Czech hedgehogs in World War
2 in anti-tank defence. Soldiers (TO BUILD) Czech hedgehogs at the places
where enemy
(A TANK) could appear. (THIS) barriers slowed down
the tanks.