单项选择题In the last paragraph, the author thinks that pictures are those except ones that ______. A) are useful in every aspect of our life C) are of much use in our life B) should be made interesting D) have different forms

单项选择题A．Because low-tar cigarettes are cheaper.B．Because low-tar cigarettes reduce the risk to their health.C．Because cigarette manufacturers have produced a lot of low-tar cigarettes.D．Because the government advised people to buy low-tar cigarettes.

单项选择题A．Because the dinner will be over in an hour.B．Because he is iii and waiting for an operation.C．Because he is attending his parents.D．Because he has an urgent patient to deal with.

单项选择题A．She types well.B．She is English.C．She is good at languages.D．She used to be a school teacher.

单项选择题A．To have the cigarettes with less tar.B．To smoke after dinner.C．To smoke less.D．To give up smoking entirely.