1.A brilliant idea occurred to him,________ to his research in the lab.
A.while devoting B.while devoting himself
C.while he was devoted D.while devoted
2.It was not just the size of the party last night ________ made it unique,but ________ it meant to our company.
A.what;that B.that;what C.what;what D.that;that
3.All ________ is a continuous supply of the basic necessities of life.
A.what is needed B.for our needs C.the thing needed D.that is needed
4.It is exactly ________ we behave ________ has changed the world.
A.which;that B.how;that C.how;what D.what;that
5.She has been in ________ doctors describe as a vegetative(植物的)state for six years.
A.what B.which C.that