爱早已变质
幼苗
共回答了11个问题采纳率:100% 举报
1.want/need/require doing 需要做某事 .注意.当主语为物时,既和动词有被动关系时用主动式doing表示被动关系.
如 The room needs cleaning.(如果主语为人是这样的 We need to clean the room)
2.be worth doing 值勤得做某事(主语和动词之间是被动,用主动表示被动)
This problem is worth discussing.
this book is worth reading.
1年前
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