您要查找的是不是：
- Is it Tom's ball? 它是汤姆的球吗?
- Will Tom continue to collect stamps or is it only a passing fad? 汤姆还在集邮呢，还是热劲已过?
- Is it your turn to serve the ball? 该你发球了吗?
- Has that car been sold or is it still up for grabs? 那辆车卖掉了呢，还是依附旧待价而沽呢？
- How long is it since we visited your mother? 自从我们看望你母亲以来到现在有多长时间了？
- Have a smell of this wine; is it all right? 你来闻一闻这酒，是好的吗？
- Is it necessary for me to attend the meeting? 我真的必须参加这个会议吗？
- Is it wise to engage in active sports at your age? 我这样的年纪积极参加体育活动是否明智？
- Is this the original drawing or is it a copy? 这是原画还是模本?
- Will tom continue to collect stamp or is it only a pass fad. 汤姆还在集邮呢，还是热劲已过。
- What time is it? It is nine o'clock. 现在是几点钟？现在是九点钟。
- Is it your turn to serve the ball ? 该你发球了吗?
- 'Is it Tom you're going with?' she hazarded. “你要和汤姆一起去吗?”她冒失地问。
- Is it safe to site the power station here? 在这建造发电厂安全吗？
- Only by this means is it possible to persuade him. 只有用这种方法才能劝得动他。
- Why is it that we should be afraid of him? 我们为什么要怕他呢？
- Is it definite that they will sign that contract? 他们肯定会签署这份合同吗？
- Is it dinner jacket or white tie? 那是便装还是礼服？
- What is it like in the bowels of the earth? 地球内部是什么样子？
- What inning is it? Who 's winning? 现在是第几局?哪一边领先?
