Here are several exercises focusing on question words where pupils can fill in the correct words.
This work sheet explains when and how to use have/haven´t/has/hasn´t.
This work sheet explains the use of like/would like using a few examples and some basic exercises.
On this work sheet are sentences where the question word is missing. Pupils can fill in the correct one from the box (why, how, what, where, when, can, is, are, do).