在下列各句的每个空格内填上一个适当的单词，该词的首字母已给出。

1. When I go out for a walk after supper, my little dog always f         me．

2. Work h       , or you will fail in the exam.

3. At present, we should pay more a         to the quality of all kinds of food.

4. Before joining the army, everyone has to have a m        examination.

5. Jack doesn't like pop music but he e        light music.