Directions: There are 30 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.
21 The fifth generation computers, with artificial intelligence, _________ and perfected now.
A) developed B) have developed
C) are being developed D) will have been developed
22 This ticket _________ you to a free meal in our new restaurant.
A) gives B) grants
C) entitles D) credits
23 You __________ her in her office last Friday; she's been out of town for two weeks.
A) needn't have seen B) must have seen
C) might have seen D) can't have seen
24 That was so serious a matter that I had no choice but ________ the police.
A) called in B) calling in
C) call in D) to call in
25 She was so ________ in her job that she didn't hear anybody knocking at the door.
A) attracted B) absorbed
C) drawn D) concentrated
26 __________ as it was at such a time, his work attracted much attention.
A) Being published B) Published
C) Publishing D) To be published
27 At first, the speaker was referring to the problem of pollution in the country, but halfway in her speech, she suddenly _________ to another subject.
A) committed B) switched
C) favoured D) transmitted
28 It is politely requested by the hotel management that radios ______ after 11 o'clock at night.
A) were not played B) not to play
C) not be played D) did not play
29 Although I like the appearance of the house, what really made me decide to buy it was the beautiful ______________ through the window.
A) vision B) look
C) picture D) view
30 Cancer is second only __________ heart disease as a cause of death.
A) of B) to
C) with D) from
