The scientist corresponds with colleagues in order to learn about matters ______ to her own research.

Have you read today’s report about your performance— I don’t care what ＿＿about me

Smartphone ____ people of different ages that it soon becomes popular in the market.

Little Jimmy is getting fatter and fatter __________ his bad eating habits .

What do you think of the fish–It looks________ , but I don’t know if it tastes .