题目内容：

综合填空：根据短文内容选择方框内单词并用其恰当形式填空（每空一词）。

interesting, best, subject, like, history

The students are talking about their favorite    1.     at school. Maria likes English very much. She thinks it’s very easy and     2.      . But Ann has different ideas. She says it is difficult and boring. She likes       3.     because she can learn about the past. Ellen      4.     biology. She knows a lot about plants(植物) and animals. Which do you like      5.     ? Can you tell me why?