6.Robert suggested lester_______ the con struction of the new building.

A.to undertake             B.undertook  carrying out

C.undertake to carry out   D.undertake

7.He doubts ____ his mother will allow him to climb the hill.

A.that           B.if            C.which        D.what

8.There is no _____ in a dvising him to give up smoking.He is very stubbom(¹ÌÖ´µÄ).

A.doubt          B.point       C.wonder         D.hope