主语从句练习题~
1.___B_ you don't like him is none of my business.
A.What B.Who C.That D.Whether
2.It‘s uncertain(不确定） ___C_____ the exhibition will be hold in Shanghai.
A.if B.that C.whether D.how
3.___C_____ makes mistakes must correct them.
A.What B.That C.Whoever D.Whatever
4._____ as much as one-fifth of all timber harvested is not used.
A.The estimate B.The estimate
C.They are estimated D.It is estimated that
5._____ was once regarded as impossible has now become a reality.
A.That B.Which C.Who D.What