—How can I get more information about your products?—_____ to call the sales office or visit our website.

---Tom, you are so excited! What has happened?---______ I’ve passed the College Entrance Examination.

---How do you like the book?---____.

We must follow Sign ______ to save every drop of water.

—You can have a pet dog, but suppose you get bored with it in a few days.________?--- We won’t, we promise.