Complete the sentences with the + or adjective or adverb

Complete the sentences with the + or adjective or adverb form of the noun in brackets.
6 The sofa was so ________ (comfort) that I fell asleep!
7 I dropped a glass, but ________ (luck) it didnt break.
8 It was ________ (fortune) that someone was walking past when you shouted for help.
9 These scissors are ________ (use) they dont cut anything!
10 Dont be ________ (patience). Your food will be ready in a few minutes!
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