问题补充：
—The number of the tigers is getting . —I agree you.
A. more and more; to
B. smaller and smaller; to
C. smaller and smaller; with
D. more and more; on
答案：
A. more and more; to
B. smaller and smaller; to
(答案→)C. smaller and smaller; with
D. more and more; on
解析：句意:--老虎的数量在逐渐减少。--我同意你的观点。当表示数量少时应该用small，表示数量多时用large。agree with指“同意”，后面接“人”或者“意见”。 agree to指“同意于”，后面接意为“提议”，“办法”，“计划”等的词。agree on/upon指“(双方)决定”。根据句意故选C。
