—Can you go to the mall with me this Sunday?— because I have to babysit my sister.A. Sure

问题补充：

—Can you go to the mall with me this Sunday?

—, because I have to babysit my sister.

A. Sure

B. No

C. Yes

D. Sorry

答案：

A. Sure

B. No

C. Yes

(答案→)D. Sorry

解析：句意：你周日可以和我去商场吗？对不起，因为我要照看我妹妹。根据回答可知是拒绝了，选D，对不起。通常不用no来直接拒绝别人。