单词辨音：找出划线部分不同读音的单词。1.

Did you remember the days ________ we studied in the university?—Certainly.Especially the hard times ________ we spent together.

The young man was often seen ____ by the lake.

If the balance of nature is ____ , a series of problems will arise .

Women at that time were ________ the right to vote because they were not treated equally as men.