Write the correct question for the following sentences.
5. Helen received grant for her research work two weeks ago. (What)
6. Lora played tennis with her group-mates an hour ago. (Who)
7. I took a shower because the weather was hot. (Why)
8. The computer cost two thousand dollars. (How much)
9. The lecture began at 9.00 o’clock yesterday. (When)
10. She took an interesting book from the library. (What)