Do you know _______ he is from Hainan or not?A. that B. whether C. if
I have ______ friends at school. I like playing with ______.
– _____ is your mother? – She is _____ English teacher.
—Can I use your bike for an hour? --_________.
Mr Smith thought the Ceatury Park was the second _____________park in Shanghai.
The story_________is not boring.