does not become _whom_; as "_Who_ do you speak to?" "_Who_ do you expect?" "_Who_ is she married to?" "_Who_ is this reserved for?" "_Who_ was it made by?" Such sentences are found in the writings of our best authors, and it would be presumptuous to consider them as ungrammatical. If the word _whom_ should be preferred, then it would be best to say, "For _whom_ is this reserved?" &c.