下面每句都有一個標點符號錯誤，該用標點處未用標點或標點符號用錯，改正錯誤或補寫標點。1.I don't know how to answer that question?2.Don't forget to cross your ts.3.Ouch I think I've broken my toe.4.It was James' father not her mother,who visited her recently.5.It is a dependable fool proof method.6.Our company produces many fine products it has,in fact,a reputation for quality merchandise.7.In the first quarter prices rose 5 per cent;in the second quarter,3 per cent and in the third 7 per-cent.8.Frank Stanley,III will replace his grandfather,Frank Stanley,Sr.,as president of the company.9.Stallions yield the highest prices;but mares can also be extremely expensive.10.Help,Help!Someone has fallen into the river.

We have received with thanks your fax of March 30 and （） to reply as follows.

用所給的詞和詞組寫出符合邏輯的句子。are not/you/a license/allowed/electronic equipment/to import/without

用所給的詞和詞組寫出符合邏輯的句子。my purpose/to improve business/it is/to find out/of the visit/the possible measures/about/to be taken

Although （） primarily to promote trade relations, these agreements also foster technological cooperation.