）4.This desk is broken.It needs _______.A.to mend B.mending C.to be mend D.not mend
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）4.Thisdeskisbroken.Itneeds_______.A.tomendB.mendingC.tobemendD.notmend）4.Thisdeskisbroken.Itneeds__
）4.This desk is broken.It needs _______.A.to mend B.mending C.to be mend D.not mend
）4.This desk is broken.It needs _______.A.to mend B.mending C.to be mend D.not mend
）4.This desk is broken.It needs _______.A.to mend B.mending C.to be mend D.not mend
B.当句子主语是物体（不能像人一样发出某种动作）的时候,need后面需要的动作词要在动词后加ing,这个时候的动词ing形式叫做动名词,表示桌子需要人来修理,而不可以自我修理.也可以说This desk needs to be mended.
B，need的用法之一，加动词ing或者to be done表示被动。
该题中说桌子坏了需要修理，桌子被修理。
答案：B need doing ; doing=to be done ,主动表被动形式
This is a desk.(就a desk 提问）
This desk is a wooden desk.(改为同义句）This desk-------- --------- ---------wood.
This is a desk.(一般疑问句）
Is this your desk.(怎么回答）
This is s（） a.teachers'desk b.teacher desk c.tThis is s（） a.teachers'desk b.teacher desk c.teacher's desk
This is a desk 复数
This is （Tom）desk（选正确形式填空）
this is desk（一般问句,肯定回答）
This book on the desk is quite_______（interest）
This desk is oid.（改为同义句）
this is ___ (我的） desk.为什？
This is a desk.(对画线部分提问）desk画线
is this a desk?（肯定回答） 怎么写?is this a desk?（肯定回答） 怎么写?
that desk is bigger than that one .(同义句转换 ） the desk is _____ ______ this one
This is a desk.(改为一般疑问句)
This desk is red 改为选择疑问句
This desk is red 改为反义疑问句
is this your desk ------yes,it i______