He has two pets. One is a dog, ______ is a cat.

_____ at the news that I didn’t know what to say to comfort her.

Marsha thought her friends would do something to celebrate her birthday, but they just gave her a birthday card.

Mr. Bill always makes his class very lively and interesting. — You are right. No one teaches ____.

A lot of trees________ around here every year, and we can enjoy fresher air now.