Jason was ill yesterday he didn’t go to school.A. orB. butC. forD. so

问题补充：

Jason was ill yesterday, he didn’t go to school.

A. or

B. but

C. for

D. so

答案：

A. or

B. but

C. for

(答案→)D. so

解析：句意：Jason昨天生病了，所以他没有去上学。Or或者；but但是；for因为；so所以。