Documents Vocabulary (Ex. 1)

Unit 3 Meet the Natural World Vocabulary (Ex. 1) safari (n) a trip to see or hunt wild animals competition (n) a situation in which people or organizations compete with each…

Documents Should 、 ought to 、 must You should clean the blackboard. You ought to clean the blackboard. ....

Should、 ought to 、must You should clean the blackboard . You ought to clean the blackboard . You should not draw it on the blackboard . You ought not to draw it on the…