问题补充:
---Sam becomes the top student because he is very clever.
---. Without the help of his hardworking teachers, he can’t make it at all.
A. I don’t think so.
B. I’m afraid so.
C. I agree with you.
D. I don’t know.
答案:
(答案→)A. I don’t think so.
B. I’m afraid so.
C. I agree with you.
D. I don’t know.
解析:情景交际. I don’t think so.我不这样认为;I’m afraid so.恐怕如此;I agree with you.我同意你的看法;I don’t know.我不知道.句意:因为他很聪明,萨姆成为了尖子生.联系下文,没有辛勤工作的老师的 帮助,他也不能做得到.结合语境可知选A.