6. Internet shopping has begun to have a serious impact to the traditional bookstores.

5. Commercial television is one of the most effective medium for advertising.

4. I know her birthday is in July,but I can't remember the exactly date.

3. People differ with one another in their ability to handle stress.

2. They failed in all their attempts to climbing the mountain.

下面各句中均有一处错误，请找出并改正。

1. 1 have two sisters. They all live in London.

6. Recent   (针对失聪儿童的研究) has produced some interesting findings about their speech.

5. 1 don't feel that I  (为…做好准备) my driving test yet.

4. He     (被禁止离开这所房子) yesterday,as a punishment.

3. All those    (赞成这个计划的) ，please raise your hands.