Read the text and fill in the gaps.
Today we take many inventions for granted but one of the most useful ones is the “not so 1______ “ supermarket trolley. before the 1930s women shoppers went into grocery stores with their own baskets. 2________, they would only buy a few things because their baskets wouldn’t 3_____ much.
Sylvan Goldman of Oklahoma 4______ this and decided that he had to think of a way to encourage people to buy more, especially since business was not 5_____ very well. He took a folding chair, 6_______ wheels to the legs and placed two baskets on top.
1 A critical B significant C meaningful D serious
2 A Futhermore B In particular C However D Apart from that
3 A put B keep C hold D take
4 A noticed B watched C regarded D viewed
5 A making B running C doing D heading
6 A included B added C combined D accompanied