Big Ben becoming leaning tower of London

KEY

Question 1

a) False “ so far off that experts say the tilt is visible to the naked eye”
b) False “In the unlikely event that the tower falls,”
c) True which may at least offer some compensation to architectural purists unimpressed by the modern building“
d) False in the late 1990s, special techniques were used to create a concrete barrier under the tower, in a bid to secure it.

Question 2

a) The possible reasons are the construction works which have been made around the tower, including the development of the underground system and a parking space for the Members of Parliament.
b) Engineers have reached the conclusion that there is more that one factor which can explain the leaning of the tower and that the speed at which the tower is tilting is increasing every year.

Question 3

a) topple / to topple
b) ranged / have ranged / to range
c) rate

Question 4

a) The tower is believed to be sinking.
b) Engineers used special techniques to create a barrier under the tower.
c) Although the tower is tilting slowly, a new survey has found that the movement has accelerated.