Vocabulary Building – add power to the words (I)

Exercise 5 A blimp is a small airship. It doesn’t have a metal frame to give it shape. But a blimp does have a strong bag that is filled with gas. The gas makes the blimp float. When the gas is taken out, the blimp collapses. 1.In this paragraph, the word collapses meansA. falls downB. […]