It was a great day we did not enjoy it at the beginning.A. andB. butC. orD. then

问题补充：

It was a great day, we did not enjoy it at the beginning.

A. and

B. but

C. or

D. then

答案：

A. and

(答案→)B. but

C. or

D. then

解析：and和,并且;but但是,可是;or或者,否则;then那么,然后.句意:那时不错的一天,但是在一开始我们玩得并不高兴.结合语境可知上下文是转折关系,故选B.