-Life itself tells us it is necessary to learn to be     .One can hardly survive without help from other people in the world.

Tim’s performance was __wonderful than Peter’s in the play. The audience thought little of both.

Mary is a ______customer of that shop; That’s why sometimes she is given a small discount(折扣)

 The ______ used ______ to produce a rabbit from his hat.

The new education system is said to be _______ to the successful development of the country.