Fo r example, last week it explained how some birds have adapted to survive in a desert。
During times of change they should be thinking not only about the strain on their staff but take time out to think of themselves. (7-1-3)
Improvements in technology mean that many illnesses that used to be fatal can now be treated safely and cheaply.
②Tynan is going to give a speech this afternoon.
Which do you think is better, to have a large group of friends or just a few close friends?