1.   And, with the vocabulary lesson as an opportunity, I decided to raise a point.

2.   Following the dialogues are three vocabulary lessons that review the words and phrases you have just heard.

3.   Need a vocabulary lesson?

4.   So an ad hoc vocabulary lesson replaced what Foster had planned to teach that day.

5.   Standing in front of the blackboard, she gave a vocabulary lesson to rows of children seated at their desks.

6.   The preschoolers got a quick vocabulary lesson coupled with a clear warning from Cheri Watson as they approached the tigers and bears.