单项选择题
A.emergedB.mergedC.occurredD.happened
Mr.Leach is on holiday and was not（）for comment.A.amaze...
单项选择题Mr.Leach is on holiday and was not（）for comment.
A.amazedB.availableC.annoyedD.anticipate
（）that dieting is fruitless for people who think that t...
单项选择题（）that dieting is fruitless for people who think that they are too fat，the alternatives are fairly limited.
A.AssumingB.AssumedC.AssumeD.Assembled
Which of the following involves using the inherent stre...
单项选择题Which of the following involves using the inherent strength of social networks to encourage visitors and fans to share their Likes and comments with friends？（）
A.social densityB.engagementC.amplificationD.dark social
