B. 请根据句意从方框中选择合适的单词，并用其适当形式填空，使句子通顺。
小题1:Lucy said that Mr. White offered her some _________ suggestions.
小题2:Those volunteers always think more of others than of _________ .
小题3:Mr Yang, I fell ill last night and didn’t finish my homework. I’m ________ sorry about it.
小题4: —Why do the beautiful birds ________ so fast?
—Because of lack of food.
小题5:It’s known to us all that ________ need food, water and air to survive.
