(填写适当形式的词汇)The Internet has opened up a marketplace where sellers and buyers are virtually _____ (know) to each other.
第1题
(填写适当形式的词汇)Recent developments in computer aided design have _____(able) us to produce more cost—effective magazines.
第2题
(填写适当形式的词汇)Traveling allows young people to _____ (deep) their understanding of other cultures.
第3题
(填写适当形式的词汇)He had a _____(youth) appearance even in his middle age.
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