695.It took a long time for the connection between body temperature and illness _____ .
A.to make
B.to be made
C.making
D.being made
696.While watching television,___________.
A.the doorbell rang
B.the doorbell rings
C.we heard the doorbell ring
D.we heard the doorbell rings
695.答案是B;题中make与connection之间为动宾关系，故用不定式的被动语态。
696.答案是C;根据watching，可以推断该句主语应为人。Hear是感官动词，其后要接动词原形作宾语补足语。
