By the year 2010,the children online will _______(be) 60,000,000.为什么答案说是have been
问题描述:
By the year 2010,the children online will _______(be) 60,000,000.
为什么答案说是have been
答
到2010年为止,上网儿童人数将达到.
到将来一个时间为止,用将来完成时.