1. The villagers built this bridge last year.(改为被动语态)
    This bridge_____the villagers last year.
2. What delicious food!(用how改写)
    _____ _____the food !
3. The boy is so young that he can't take care of himself.(改为同义句)
    The boy is_____care of himself.
4. I was invited to the party by my friend today.(对画线部分提问)
    _____Were_____invited to the party_____today?
5. This is a very important meeting.(改为感叹句)
    _____ _____a meeting it is !