⑴May I go shopping with you?                                        A. Oh, I see.

⑵We must cross the street when the light is green.         B. Good idea.

⑶May I speak to Mary?                                                      C. Certainly.

⑷How about reading books?                                             D. I'm reading a book.

⑸What are you doing'?                                                       E. Sorry, she is not in.

例 :  (Left turn)

You can turn left.