1．The people all ________ (鞠躬) down before the Emperor.
2．Conditions in the prison camp were ________(难以置信的)．
3．He went to the post office to buy writing paper and ________(信封)．
4．Why are you so ________ (粗鲁的) to your mother?
5．The ________ (方式) in which the decision was made was hard to accept.
6．Could you tell us what's for ________ (甜点)?
7．He covered her mouth to stop her from ________ (尖叫)．
8．A large ________ (数量) of water has been wasted by the factory.
9．It's well－known that his father is a very ________ (真诚的) person.
10．I was very sad ________ (真正地) to hear of your father's death.
