--____ is Mount Tai, Susan? --Oh, it is 1,532 meters high. A.How long B.How wide C.How high
-I joined the League _____ May 4th, 20ll. What about you -I have been a League member ______ three years ago.
-Is the man over there your English teacher ? --No, it ______ be him. He has gone to Canada to study further.
—Why did you buy so many flowers? --Because today is a special day. My parents ________ for twenty years .
---You look so tired. What happened? ---I____late writing an article for a newspaper yesterday vening;.
---We can't be successful _____ we keep on working hard. ---I agree with you.