【推荐1】He did it on purpose, not________ ________ (无意). （根据汉语提示完成句子）

【推荐3】Imagine having the _________ to sing together with hundreds of other people while you are at home alone.(B2U5)(用适当的词填空)

【推荐2】It also contains the information that help determine our lifespan and affects our chance of ________ ________ ________ (感染某些疾病)．(根据汉语提示完成句子)

【推荐3】Imagine ________ sing together with hundreds of other people while you are at home alone. You can do this in a virtual choir. . . Many people do not have close friends or contacts who have the same interest in music. Many others do not have the chance to join a local choir. A virtual choir ________ their voices to those of other individuals and become part of the global community. （根据句意填空）

【推荐1】_____ ______ _____, I don't think we have a chance of winning. 说实话, 我认为我们没有获胜的可能.

【推荐2】What is known to us all is that Australia ________ (是……的故乡) kangaroos.(根据汉语提示完成句子)

【推荐3】He often __________ the children ______ funny expressions. 他经常用滑稽的表情逗孩子们玩儿。