问题

He was just about to give up and return to his bedroom for a good rest ________ he had a bright idea
A:but
B:while
C:until
D:when
B:while
C:until
D:when
正确答案是:
同类题型
Did you enjoy the movie? —Sure, it is _____ a beautiful country town with a variety of cultures.
Please ____ the mistakes in my composition
He telephoned the travel agency to ________ three air tickets to London.
useful inventionit is.—Yes, It helps us a lot.
It was in the house ___he used to live that the exhibition was held.