按要求进行句型转换。 (共10分，每小题2分)
1. He wanted to do something.（变为一般疑问句）
_____________ he _____________ to do _____________?
2. I cleaned my room last weekend.（就画线部分提问）
_____________ _____________ you _____________ last weekend?
3. It was time for lunch.（变为同义句）
It was time _____________ _____________ lunch.
4. I can’t do anything.（变为同义句）
I can _____________ _____________.
5. It took me two hours to do my homework.（变为同义句）
I _____________ two hours on my homework.