being done的用法书上说being done 有做原因状语,比如 Being badly wounded,the
being done的用法 书上说being done 有做原因状语,比如 Being badly wounded,the whale soon died. 可是这题.——twice,the postman refused to deliver our letters unless we chained our dog选的是bitten 而不是 being bitten.为什么不能把being bitten理解为,因为被咬了两次呢? 还有一题,the country has already sent up three unmanned spacecrafts,the most recent one()at the end of last march. 选项是A has been launched B having been launched C being launched D to be lauched 为什么要是B不能是A.A是因为加了具体时间所以不能用完成时吗?那为什么要选B,理由?