Ⅰ. 根据句意及括号内所给单词的提示填空。
1. The brain is the ________(center) part of the human body.
2. Grace picked ________(grape) on her uncle's farm last weekend.
3. The young man took his friend to a very nice ________(Italian) restaurant.
4. It was a sunny afternoon, so I suggested ________(go) to the beach.
5. The hotel ________(staff) tried their best to make sure that our stay would be as enjoyable as possible.
6. Dave ________(mail) the gifts yesterday. He wanted his children to receive them before Christmas.