单选题 Summer holiday camps (夏令营) for children began in the
USA over sixteen years ago. Today there are {{U}} {{U}} 1
{{/U}} {{/U}}than 8,000 summer camps in the United States and every year
{{U}} {{U}} 2 {{/U}} {{/U}}four million children pass through
their gates {{U}} {{U}} 3 {{/U}} {{/U}}June and August. Some
{{U}} {{U}} 4 {{/U}} {{/U}}by bus every day from the nearest
town. {{U}} {{U}} 5 {{/U}} {{/U}}stay as campers for one or two
weeks. Quite a lot of children go off to camp {{U}} {{U}} 6
{{/U}} {{/U}}the whole of the summer holiday. The people there are young and
{{U}} {{U}} 7 {{/U}} {{/U}}. There is good food and lots of
interesting things {{U}} {{U}} 8 {{/U}} {{/U}}. In many camps
children learn things {{U}} {{U}} 9 {{/U}} {{/U}}cooking and
drawing pictures. Every evening there are camp fires and games. Everyone goes to
bed {{U}} {{U}} 10 {{/U}} {{/U}}but happy.