— How are you getting on with your lessons?— Much          . I can do well in the final examination．

---        they are talking to each other!---Yes. They are really happy to see each other. 

Sally used to be ______, but now she enjoys meeting and talking to new friends.

—Math is too difficult. I want to give it up. —Please don’t. Nothing is _________if you put your heart into it.

This book is ______,I like it very much.