______ for my illness I would have lent him a helping hand with his researching.
A．Not being
B．Had it not been
C．Without being
D．Not having been

A.
A．Not
B.Had
C.Without
D.Not

【参考答案】

B
本题综合考查倒装结构和虚拟语气，根据后面的主句可知，是对与过去相反的事实的假设，所以从句用过去完成时，倒装后......

(↓↓↓ 点击下方‘点击查看答案’看完整答案 ↓↓↓)