以代词为主语的英语句子

人称代词：

Iamastudent.

Youareateacher.

Heisaworker.

Shehasadog.

TheywillgotoBeijing.

指示代词：

ThisisMary.

Thatismycoat.

疑问代词：

whatisthis?

不定代词：

Bothofthemareteachers.

some(ofthem)aredoctors,some(ofthem)arenurse.