铃铛拼音是什么:介词好难啊~高手帮忙解几个问题！

1.Heilongjiang Province is ___C___ north of Liaoning. Harbin, its capital city, lies ___C___ the Songhuajiang River.
A.to;on B.in the;in C.不填;on D.to the;in
这里前面一格弄懂的，就是后面一格？

2.Although Tom agreed with her on most points, here was one ___C___ which he was unwilling to give in.
A.on B.in C.to D.with
这里不是agree to one's suggestion 吗？怎么扯到agree on上了？不是agree on是大家一致同意么？不懂。

3.For holidays, many people visit the Grest Barrier Reef ___D___ the northest coast of Australia, which has 700 islands.
A.on B.in C.to D.off

4.-Tang Gonghong is indeed too large, I think.
-But ___B___ that she is an excellent weight lifting athlete.
A.in addition to B.in spite of C.thanks to D.owing to
这个句子是什么意思？

5.I certainly agree ___D___ your suggestion. But I wonder if all the members of the board will agree ___D___ the steps for the coming year.
A.to;with B.to;on C.on;with D.on;on
还是老问题！

谢谢各位解答！
第二题大家不要理会我说的，其实我说的那个是第5题上的，呵呵~
第一个是lie on the river呀？怎么在谈in了呢？哈尔滨在松花江内？