[jesselt]

Here is a random question from a JLPT 4 practice sheet thing. I'm not sure how old this is so it may be different now.

やまださんの　けんきゅうしつは　ごかいの　いちばん　てまえです

There will then be 4 options for each of the underlined. The correct answers are below.
１）　研究室
２）　五階
３）　手前

You should note that they try and trick you by showing other options that are similar pronunciation or similar kanji. The other options for the second one include 五回 and 五会 for example.