-Listen! Is Mary playing the piano in the room? --No. It ________ be Mary. She has gone to Hong Kong.
If you take this new type of train to Xi’an, it will _________ you only two hours to get there.
--I hear 115 workers were saved after 8 days and nights’ hard work.--________news! How amazing B. What amazing C. How amazed D. What amazed
Jim is very popular in our class because he is _________clever ____________helpful.
You'd better do it by yourself. _________else can help you.