摘要： 将来完成时 主动语态:willshall have done 被动语态:willshall have been done We will have cleaned the classroom by five o'clock. 我们将在五点之前打扫完教室. The classroom will have been cleaned by five o'clock. 教室将在五点以前打扫完. The new books will have been entered in the register before another parcel arrives. 这些新书在下一批书到来前将登记完毕. How many expressways will have been completed by the end of next year 到明年年底将建成多少条高速公路? Before you return my work will have been done. 你回来前我的工作将会做完.

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