16. He left early on the ____ that he had a bad toothache and had to see the dentist.
[A] prescription [B] pretext
[C] knowledge [D] precondition
17. The new edition of the encyclopedia ____ many improvements, which is the result of the pers istent effort of all the compilers. [A] embedded [B] embodied
[C] enchanted [D] enclosed
18. The boys and girls ____ together round the camp fire telling stories and singing songs.
[A] reversed [B] clapped
[C] clustered [D] contracted
19. The new underground railway will ____ the journey to all parts of the city.
[A] consume [B] eliminate
[C] formulate [D] facilitate

22. The notice about the English evening ____ many students who have interest in English.
[A] impelled [B] intrigued
[C] provoked [D] induced
23. The leader went his own way in ____ of the&nb sp;public opinion, which aroused great anger among the people.
[A] defiance [B] reflection
[C] obedience [D] observation
24. Could you just give me a hand? Let’s ____ the car into motion; it got a flameout just now.
[A] shove [B] nudge
[C] prompt [D] poke
25. The river was ____ with waste from that factory. Some measures must be taken to stop its production. [A] corrupted [B] consumed
[C] contaminated [D] infected
26. Poverty is not ____ in most cities although, perhaps because of the crowded conditions in certain areas, it is more visible there.
[A] rare [B] temporary
[C] prevalent [D] segmental
27. People who live in small towns often seem more friendly than those living in ____ populated areas.
[A] densely [B] intensely
[C] abundantly [D] highly
28. As a way of ____ the mails while they were away, the Johnsons asked the cleaning lady to send little printed slips asking the senders& nbsp;to write again later.
[A] picking up [B] coping with
[C] passing out [D] getting across
29. Tom’s mother tried hard to persuade him to ____ from his intention to invest his savings in stock market.
[A] pull out [B] give up
[C] draw in [D] back down
30. An increasing proportion of our population, unable to live without advanced medical ____, well become progressively more reliant on expensive technology.
[A] interference [B] interruption
[C] intervention [D] interaction
