单项选择题
She is the best woman（）I have ever seen in my life.
A.what B.that C.whose D.which
单项选择题 They（）so that we wouldn't recognize them.
单项选择题 —Glad to see you again. How was your trip? —（）
单项选择题 Once more I am in Boston,（）I have not been for ten years.
