subject|subjects

在句子 'Bob threw the ball' 中，'Bob' 是主语。

In the sentence 'Bob threw the ball', 'Bob' is the ___subject.

句子 'The cat is sleeping on the sofa' 的主语是 'The cat'。

The ___subject of the sentence 'The cat is sleeping on the sofa' is 'The cat'.

她喜欢游泳和练习瑜伽。事实上，这是我们第一课的主题。

She likes swimming and practising yoga. In fact, this was the ___subject of our first lesson.

我们在学校学习许多科目。

We study many ___subjects at school.

我最喜欢的科目是历史和地理。

My favorite ___subjects are history and geography.