— I can’t decide __________or not I should encourage my son to be a volunteer.— Why not? It will make him more helpful.
----Do you know the girl in the white dress? ----Yes, she’s ____ university student. She always takes _____ umbrella with her.
--Please sit down. --______.
--Is there an English book in your bag? --______. It’s a Chinese book.
. The park is the library and the school.
Lingling is a . She works in a hospital.