单项选择题______ of the twins passed the exam because they worked hard at their lessons.
单项选择题How happy we are ______ each other here away from home!
单项选择题______ the window. What's happening there
单项选择题______ bad weather we are having! We've never had ______ rainy days.
单项选择题He is so fat that the chair is not large enough for him to ______.