Mass nouns, countable vs. uncountable

Can I borrow a .........? I seem to have forgotten mine at home. This is a count noun.

I like ...... This is a grain and is a non-count noun.

Sharon likes to eat an ..... a day. She likes the Granny Smith variety best. This is a count noun.

Can I borrow a .....? I seem to have forgotten mine at home. This is a count noun.

I just got my ..... done yesterday. The stylist cut and styled it for me. It looks great. This is a non-count noun.

Plants give off ..... and humans release carbon dioxide. This is a non-count noun.

We live in a rainforest region, so there is a lot of ..... on the ground every morning. This is a non-count noun.

There was a lot of ..... at the Broadway show last week. People were very happy with the performance. This is a non-count noun.

I want to paint two ..... in this room. This is a count noun.

Children have a lot of ...... They also have a lot of questions. This is a non-count noun.