The train is running _____the speed of 200 kilometers per hour.
My mother lives __________ because she hardly ever exercises.
_________ she is a little girl, _________ she knows a lot.
---- When you finish __ your novel (小说), please __ me a call .---- All right .
Boys and girls , I am sorry to say that I have ___ to tell you .
Lucy isn’t __ at sports ____ her sister.