________–He’s friendly and helpful. He often helps me with my homework.

In this lecture, I can only give you a purely ______ view of how we can live life to the full and make some suggestions about the future.

t believe that anyone else in theschool can swim as fast as you, ________

Though ________ in a big city Jim always prefers to paint the primitive(原始的)scenes of country life.

29. A good teacher should leave some time for the students to _________ the knowledge.