Dear kids, please treat ________ exam with a usual mind. Calm down,you will get________excellent marks.A. the, an B. the, a C. the, /
—Who helped Betty tidy up the bedroom just now? —________. She cleaned it all by herself.
The workers in the Huashan Mountains have to ______rubbish to keep the mountains clean.
— Whose shoes are these? — They ____ be Mike’s. They are much too large for him.
The little child was too _______ to hear the end of the long speech.
We should learn_______ each other.