题目内容：

请根据句意从方框中选择合适的动词，并用其适当时态填空，使句子通顺。

lead   call   introduce   understand  describe

1.I remember that I first ____________ myself to all the students that morning.

2. I hope each of you ____________ the importance of learning a foreign language.

3. —Hello, Mary! This is John. You must know why I ___________ you.

—Oh, hello, John! I’ve waited for this call since last month.

4.Our teacher told us that all roads ______________ to Rome.

5.His son is very clever and everyone _____________ him as a genius (天才).