单项选择题
Susan is nearly thirty-five. Her parents think it's time she ______ married.
单项选择题 -- Have you got any idea for the summer vacation-- I don't mind where we go ______ there's sun, sea and beach.
单项选择题 Ten years passed, and I found that he had______.
单项选择题 -- I think it's going to be a big problem. -- Yes, it could be. I wonder ______ we can do about it.
