Give the correct form of the words in parentheses and make other necessary changes . do not refer to the passage until you finish the exercise 用正确的词形填空，并对句子作必要的调整，完成练习后再对照课文。
2.
C give the correct form of the words in parentheses and make other necessary changes . do not refer to the passage until you finish the exercise 用正确的词形填空，并对句子作必要的调整，完成练习后再对照课文。
