6．—We need a person badly to be in charge of this program．

— _____ the newcomer have a try?

A．May     B．Will      C．Need     D．Shall

7．Tom, Jack and Rose were named as assistant professors．Believe it or not, ______ three of them were of ______ age．

A．不填; an       B．不填; the       

C．the; an         D．the; the