Body language is a powerful communication system, ______ it can signal verydifferent things.
《英語課程標準》采用國際通用的分級方式,將英語課程目標按照____設為九個級別。
老師說: Draw a circle. 學生畫一個 circle,這就屬于課程標準里面談到的用語言來做事情。
If it ______ rain heavily, the city would have great trouble because of its poordrainage system.
YouandIlikeswimming.We__havethesame__.