----- Nội dung ảnh ----- C. Read the sentences below and decide what part of speech is missing. Then, complete the sentences with the correct form of the words in capitals.
1. I love sitting on my new sofa. It's so (Part of speech: _). 2. She chose light-coloured furniture to (Part of speech: _) up her dull flat. 3. It's certainly (Part of speech: _). 4. August is a (Part of speech: _) month in our city, as everyone is away on holiday.
