Some children do stupid things. (why do some children do stupid things?)
I am looking for my watch (what am I looking for ?)
His penfriend lives in London. (where does his penfriend live?)
We met after school yesterday. (when did we meet?)
She'll come to the party. (whom will she come to the party with?)
English is spoken in many countries. (what countries is English spoken in?)
He was not prepared for the test. (why was not he prepared for the test?)
They were playing a game when I came. (what game were they playing when I came?)
I have made some mistakes in this exercise (how many mistakes have I made in this exercise?)
He has given me his old camera. (what has he given me?)