_You must get up early in the morning we’ll have to leave without you.A. andB. butC. orD.

问题补充：

_You must get up early in the morning, we’ll have to leave without you.

A. and

B. but

C. or

D. so

答案：

A. and

B. but

(答案→)C. or

D. so

解析：考查连词。连词or的意思是“否则”，符合语境。