1 . The couple, __________ life used to be very hard, have set up a series of chain stores in Europe. (用适当的词填空)
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2 . My mother bought many children's books, nearly half of __________ were for my sister. (用适当的词填空)
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3 . 正如期望的那样，他实验做得非常成功。
He did the experiment successfully,____________________________ .
He did the experiment successfully,
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4 . It will be guided by three “red lines”, one of ________ will include about 103 million hectares of permanent farmland with the aim of boosting safety, improving quality and preventing nonagricultural use. (用适当的词填空)
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5 . Seven thematic tourism routes will be launched to attract more visitors to travel to Hainan, ________ will stimulate tourism consumption and facilitate the construction of an international tourism consumption center. (用适当的词填空)
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6 . Scientists have advanced many theories about why human beings shed tears when they cry, none of ________ has been proved. (用适当的词填空)
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7 . Different colors can create different moods in your space, some of ________ may not be favorable to sleep. (用适当的词填空)
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8 . In 1961 the UN decided to set up the World Food Programme, one of ________ purposes is to relieve worldwide starvation. (用适当的词填空)
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9 . Toward the end of my teaching career, I became a teacher librarian, ________ aroused my love for being surrounded by books. (用适当的词填空)
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10 . At present the masters use the full face, painted silk masks, ________ can be worn in layers and be pulled off one by one in the blink of an eye. (用适当的词填空)
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