25. – Tom, it’s too late. Our son ________ be back.– Don’t be anxious. I dare say he ________ have some extra work to do.

______ way to go from here to Beijing is by train.

Nowadavs,most people,in order to keep fit,prefer walking to driving _________necessary

Little Jim looks a little worried. He lost his new bike yesterday.–What a pity! Let’s _____________

Nobody knows why the boy can tell what’swritten on the paper in another room without looking at it It really _______ explanation