【简答题】根据句意及汉语提示完成句子。 1. We must obey the traffic _____ (规则). 2.They often go out for a walk by the _____ (小溪). 3. It's too dark outside.I can't see the blackboard _____ (清晰地). 4. Has anyone got any _____ ( ...
【简答题】Before marriage, younger Americans date each other, that is, they often go out together. Casual dating usually begins in the early s, and in the late s a _______ of steady dating develops. The...