Work hard you’ll fail in the English exam this time.A. andB. butC. soD. or

问题补充：

Work hard, you’ll fail in the English exam this time.

A. and

B. but

C. so

D. or

答案：

A. and

B. but

C. so

(答案→)D. or

解析：考查祈使句和连接词and/ but/or。努力和失败是转折关系，排除A、C，or“否则”符合句意。