Paul attends very ________ meetings，and when he does，he has very ________ to say．

In the car accident the mother was killed, but her two-year-old son was found_____.

Einstein’s Theory of Relativity is so________ that most of us can not understand it.

When he is faced with a dilemma sometimes, he usually makes a/an ________ decision by throwing a coin.

Though the novel had a happy ending, the readers were left ____.