单项选择题The fifth generation computers, with artificial intelligence, ______ and perfected now.
A．developed
B．have developed
C．are being developed
D．will have been developed
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1.单项选择题The organization had broken no rules, but ______ had it acted responsibly.
A．neither
B．so
C．either
D．both
2.单项选择题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．transferred
3.单项选择题She was so ______ in her job that she didn' t hear anybody knocking at the door.
A．attracted
B．absorbed
C．drawn
D．concentrated
4.单项选择题Despite the wonderful acting and well-developed plot the ______ movie could not hold tour attention.
A．three-hours
B．three-hour
C．three-hours'
D．three-hour' s
5.单项选择题We gave out a cheer when the red roof of the cottage came ______ view.
A．from
B．in
C．before
D．into
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