The woman ______ is reading the book over there is a volunteer?—Yes. She is very kind. She’d like to ______sick kids in hospital.

If wenow to protect the environment, we’ll live to regret it.

It is ______ he often fails in exams ______ makes his parents worried about him.

Han Han is very popular among the teenagers. We all like __

Tony, tell me the result of the discussion _______ you had with your dad yesterday. [ ]