Luo Yang devoted all his life _________for China Nation Aviation(中国航天).

Whose shirt is this? Is it Tom’s? — No, it isn’t. _______ is white.

It’s said a pianist will perform at Poly Theater on Friday evening. Is it Lang Lang? — Yes, it _______ him. He _______ for a week.

This is the very reason ______ he gave for his coming late to the meeting.

Harry Potter is an___ book for children, but my cousin doesn’t seem at all_____ in it.