Was it in the train “ Harmony”, ______ is China’s first high-speed one, that John met with his foreign friend？

have ________ apple —Oh, your sister has just had it

What does your mother like doing at the weekends—-She enjoys _______ with her friends.

I know nothing about the accident _______ you told me.

I called him twicw and I couldn’t get through to him.—-The line might have been out of order,_____?