Facing this ________ problem, I found myself ________ about how to work it out.
Teachers are not happy when they find in class their students sendingto their friends.
Although it is not our normalto give credit in our shop,this time I think we should consider the matter more closely.
The success of her business made it difficult for her to carry out heras wife and mother.
Before the final examination,many students have shownof tension.Some have trouble in sleeping while others have lost their appetite(胃口).
Small as it is,the ant is as much a creature asall other animals on the earth.