When I got to the store, “iPhone 6 Plus” had been sold out. The salesmen didn’t know_____________.

______ is my hope that I will be admitted into Beijing University next year.[ ]

ster left home in 1998, and__________since

Surely it doesn’t matter where the student associations get their money from; what ______ is what they do with it.

I’m sorry; I shouldn’t have been so rude to you. — You _____ something not very nice to me, but that’s OK. [ ]