Make question with the question words in brackets.

1. Ann met her friends in the street yesterday. (Where?)
2.He usually has courses two times a week. (How often?)
3. The students have already asked a lot of questions. (Who?)
4. The girl had cooked dinner by 6 o'clock yesterday. (What?)
5. They will be watching an interesting film at 8 o'clock tomorrow.( When?)
6. The boy has already been playing the guitar for three hours. (How long?)
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