单项选择题
To our surprise, the stranger ______ to be an old friend of my mother"s.
单项选择题 The subject ______ we are going to turn is about English studies.
单项选择题 Everyone except Tom and John ______ there when the class began.
单项选择题 —Have you ever been to Tibet—Yes. I have fantastic ______ of my trip there last summer.
