A teacher must see to it that every one of his students develops .
16.You can't imagine that a well-behaved gentleman__________be so rude to a lady.
15.--How about eight o'clock outside the cinema? --That________me fine.
14. With some books badly needed_________, she hurried to the bookstore.
13. --May I put my luggage on the seat beside you, sir? --__________.
12.So absorbed__________in her work that she didn't realize I was behind her.