In the long history of natural evolution,many kinds of animals have______from the earth.
A. withdrawn
B. vanished
C. found
D. hung
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中国人常说“五福临门”，下面哪一项不属于“五福”的？()
A. 品德高尚
B. 子孙成群
C. 地位尊贵
D. 善终
What can we infer about Servas children？
A. They were unwilling to brush their teeth.
B. They often failed to clean their toothbrushes.
C. They preferred to use a toothbrush with a dry head.
D. They liked brushing their teeth after Serval came home.
Which of the following statements is not direcdy said but implied in the passage？
All the campaigns are to improve people"s behavior.
B. There are too many campaigns in Singapore.
C. The more campaigns, the more efficient they are.
D. Almost all campaigns in Singapore don"t amount to anything.
Which of the following might make the Kolibree toothbrush fun？
A. It can be used to update mobile phones.
B. It can be used to play mobile phone games.
C. It can send messages to other users.
D. It can talk to its developers.
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