Mary, put on your coat, ______ you'll catch a cold.
Now we can see many trees on sides of the road.
-Are they from Canada?-No,they_____.A. are B. aren't C. isn't
-_____,are you Mr.Wang?-Yes,I am.A. Fine B.Please C.Excuse me
-Is she Maria?-No,she_____.A. is B. isn't C. aren't
-______your name?-My mane is Kate.A. What's B. What C.Where