---Why do you look so worried?---I’m expecting a call from my son. He London for three days.
The art club is for members only. You can’t go in _____ you are a member.
Our teacher asks us to remember that _______ careful we are, _______ mistakes we will make.
My aunt said that she ________ to Guangzhou. A has never gone B.had never gone C.has never been D. had never been
.Lucy was afraid ______ out at night, because she was afraid ______ the cats.
.He raised(举起) one arm and then ________.