Have all the mysteries been cleared up— Almost. But ______ only one question ______.

John is the only one of the students in the class that never _______ a mistake even when it is pointed to him.

．—Do you feel like ________ there or shall we take a bus? 　　 —I’d like to walk. But since there isn’t much time left, I’d rather we________ a taxi.

Have you heard of the school bus accidentrecently—–Yes. thevictims was over 20 and most of them died.

I still remember the moment ______ I first saw him after his operation.