关于Theboyisbusy的百科

• Theboyisbusy

• 问题详情：Theboyisbusy_____hishomework.A．doing                    B．do                         C．todo                     D．does【回答】A【解析】【详解】句意：这个男孩正忙着做作业。考查动词非...
• 2019-05-0916128