根据句意，用括号内所给单词的适当形式填空。
1. When she got home，she found that she forgot ________(lock)the door this morning.
2. Alice's mother found her daughter had a ________(music)talent.
3. My daughter likes eating ________(cookie)very much. She thinks they're very delicious.
4. He made a ________(suddenly)decision to go to Beijing.
5. Last week our hospital bought some medical ________(instrument).
1.to lock 2.musical 3.cookies 4.sudden 5.instruments