Look at the trouble I am in. If only I _____ your advice.

下列加点字的注音都正确的一组是（ ）

Here is the tower, ______ top you can have a good view of the whole city.

The police have found enough evidence ______ the murderer did on the scene.

Such poets as Shakespeare _____ well-known, of whose works, however, some _____difficult to understand.[ ]