Question

that位于句首时可做什么成分?

Answer 1

1）that是指示代词that girl那个女孩,这时候可以用于句首；

2）that可以引导主语从句放于句首

e.g.

That he won the game is a big surprise.

这时that不可以省略,但它在句中不充当句子成分