The old man was quiteweak after the accident so he ------ A.must be taken care of B.must be looked
问题描述：
The old man was quiteweak after the accident so he ------ A.must be taken care of B.must be looked
B.must be looked after
选哪个说明理由
答
选A.must be taken care of
因为taken care of 的原型是take care of 意思是关照,照顾
B的意思错了,looked的意思是看,所以must be looked 是‘被看’