19. — What’s his job?
— He’s a(n) __________. He helps people visit tourist attractions (景点) happily.
A. farmer B. actor C. singer D. guide
20. She likes tigers, koala __________ giraffe, __________ I don’t like them.
A. and; but B. or; but C. and; or D. but; and
21. Let me __________ you how you can _____________ my home.
A. to tell, get B. to tell, arrive
C. tell, get to D. tell, arrive
