问题补充：
—Can you help me with my homework , David ? —
A. No problem.
B. You are welcome.
C. Thank you .
D. That’s right.
答案：
(答案→)A. No problem.
B. You are welcome.
C. Thank you .
D. That’s right.
解析：No problem.没问题;You are welcome.欢迎你,不客气;Thank you .谢谢你;That’s right.那是对的.根据上文,戴维德,你能帮助我写我的作业吗?结合语境可知选A.
