题目内容：

用方框中所给单词的适当形式填空，每词仅用一次，每空一词。

decide    different       little    through     healthy

1.They          to go on vacation yesterday evening.

2.There are a few __________ between the two pictures. Can you tell them?

3.My father plays chess at __________ once a week.

4.The best way to relax is ____________ exercise.

5. You should look after your             .