6. The party was in _______ (庆祝) of their silver wedding.
7. The Indians were the _______ (原来的) inhabitants of North America.
8. He enjoyed complete _______ (自由)as he wished.
9. She didn’t love him, though she _______ (假装) to.
10. When you’re done, put your sheet in the envelope _______ (标示着) with your name.