ⅰ.品句填词
a)根据句意及汉语提示，写出所缺单词。
1．i nodded to him with a smile，but he just ____________(不理睬) me and walked away.
答案：ignored
2．having just ____________(恢复)from a severe illness，uncle lee is still weak.
答案：recovered
3．we are really ____________(感激)to you for all you have
