Mr Li asked a difficult question ,but the little boy could the answer

问题描述:

Mr Li asked a difficult question ,but the little boy could the answer
A work out B catch up with C look out D come up with 本人觉得选D 那A呢

选D
A后面加问题,困难.若选A 就应该改成but the little boy could the question
D后面加方法,措施
祝新年快乐哈!