It was really helpful ______ him to take the cat to the animal centre _______ a rainy night.

Whendid you buy this still life picture一It wasin 1999 I traveled in Paris．

he is busy, music has always been_______ his work.

Our headmaster isn’t in his office. I can’t find himanywhere. Did you notice him ______ the office

Do you know how to operate________equipment in the lab