Here are many_______ and________.
—Here are two rice cards. Which one belongs to ______?—Look. Here is my name. It must be ____. The other one is yours.
—Have you ever been to New York before?—No. This is my first ______.
—Attention, please. The plane has to be put ______ because of the heavy fog.—Oh, bad luck! We have to wait now.
Could you tell me ______raise money?A. I should how B.how I should C.how should I
We should make contributions ______ our environment.A. to protecting B. to protect C. protecting