这是一篇VOA新闻，文章链接是：http://www.tingroom.com/voastandard/2016/1/339639.html
以下是截取的有关段落：
1.新闻原句：
Good computer skills are desirable in todays digital age, and playing computer games can help children hone those skills -- as long as they dont overdo it, scientists warn. The British study involved 600 teenagers over a period of two years and found that those who played computer games less than once a week achieved better grades at school than ones who played them twice a day or more often. The study also found that daily use of social media did not affect school performance.
对于绿色句子的黄色部分（频率）进行提问，课本的原句问题是
Q1:According to the news, how often did the British study find that those who played computer games achieved better grades？
我感觉以上对于频率“less than once a week”提问的疑问句不正确，由于这个句子表明的是“英国研究多长时间发现一次？”。
我一个人修改了句子，请老师们看一下是不是正确。句子是：
According to the British study, how often did those who achieved better grades play computer games?
此句正不正确？严密吗？？？
2.新闻原句：
Parents increasingly complain of having difficulty getting their children away from computer games.
课本对这句提出的疑问句是：
Q2: What’s parents attitude toward playing computer games?
请问老师，parents 后面是不是需要加一撇（’）变为parents’ attitude? attitude 用单数就能？toward（美式使用方法） 和towards（英式使用方法）都是正确的？
3. 新闻原句:
The games industry has long claimed there is no proven link between games and addiction.
课本对此句提出的疑问句是：
Q3： What’s the games industry claimed ?
请问疑问句中可以用has的缩写？
很感谢！！！
Q1:According to the news, how often did the British study find that those who played computer games achieved better grades？
这个问句确实不适合。疑问词就宾语从句中的定语从句的状语提问，疑问词距离所修饰的动词太远，容易导致听话人或读者误解。正确的问句应该使用“非倒装问句”（原位问句--即疑问词保留在原处。这种问句主要用于法庭庭审与竞猜活动的提问。）比如：
According to the news, the British study found that those who played computer games how many times a week achieved better grades？
关于非倒装问句，请参读我以前的一个解答：http://ask.yygrammar.com/q-25115.html
当然，你一个人修改后的问句也是正确的，这是普通的特殊疑问句。这个问句包括的信息不如非倒装问句的信息完整。因此，有必要知道“非倒装问句”。
According to the British study, how often did those who achieved better grades play computer games?
Q2: What’s parents attitude toward playing computer games?
parents确实应为复数名词所有格形式。toward（美式使用方法） 和towards（英式使用方法）都是正确的。
Q3： What’s the games industry claimed ?
s可以是has, 也可以是is。所以这个问句是正确的。
