Domestic oil（）and gasoline prices are two important issues in the presidential campaign.

Vietnam has（）as the world’s third-biggest rice exporter...

单项选择题Vietnam has（）as the world’s third-biggest rice exporter.

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.

（）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.