4. make questions for these answers
1 It has ten. (storeys / building) How many storeys does the building have? 2 He needs 20 kilos. (cement/ builder) 3 They're using two. (cranes/men) 4 It needs about 4 litres. (oil / car) 5 I'm buying 150. (screws/ you) 6 They can carry about 50 cubic metres. (concrete/ten trucks)​