How ______ is the Great Wall?
A. highB. shortC. long
What are you doing ? I’m _______ an email to my family.
A. sending B.sends C.send
There is a big Chinatown ______ New York .
A. toB. inC. on
---____ you collect stamps? ---No，I don’t.
A. Does B. DoC. Did
My favourite festival____ Thanksgiving.
A.amB. isC. are