A survey of the opinions of experts _________ that three hours of outdoor exercise a week ________ good for one’s health.
A.show; are B.shows; is
C.show; is D.shows; are
—What do you think of the dinner in Mr. Brown’s?
—Oh, great! We have never had a better one. It’s a dinner of twenty _______.
A.drinks B.people C.tables D.courses
The history of _______ is full of achievements and adventures.
A.man B.men C.men’s D.the men
They had to do so much walking after their car broke down on the way to the village yesterday that their _______ are still aching now.
A.leg’s muscle B.legs’s muscle
C.leg muscles D.legs muscles
If you want to do the experiment again, you had better be more careful ________ you made a mistake.
A.when B.why C.where D.that
The man made another discovery, _______ of great importance to science.
A.which I think it is B.I think which is
C.I think it is D.which I think is
