Answer:
The sentences in the form of was / were + word + ing form are past continuous sentences ....
I hope now you can do it in your own.
was it helpful to you? Plz comment.
1) steel
2) glass
3) copper
4) aluminium
5) timber
6) rubber
7) plastic
not entirely sure abour 3 and 4
Answer: A ,trust me I know this.
Explanation: