16.Children can get close to________nature by taking part in________series of outdoor activities.
A£®the£»/        B£®the£»a       C£®/£»the      D£®/£»a
17.Now I’ve got him in my________£»I can make him do anything I want.
A£®power   B£®energy   C£®strength   D£®right
18,—What’s wrong with him?
—He’s________a bad cold.
A£®suffering from   B£®catching C£®having on   D£®keeping on
19.I don’t like the pop singer’s songs.In fact.I’ve trouble_____the words of his songs.
A£®understand   B£®to understand   C£®understood   D£®understanding
20.Have you seen Jack recently£¿I wonder________with his classmates.
A£®how is he getting along    B£®that he is getting along well
C£®what he is getting along    D£®if he is getting along well
21.Drivers are warned that it is dangerous to talk on the phone while________.