请英语高手帮忙看看有没有语法错误，非常感谢。

1.事实上，今年将有更多的旅游者光临我市。
As a matter of fact ,there will be more tourists to visit our city in this year.
2.事实上，我们正在探讨如何扩大产品的销售量。
As a matter of fact,we are discussing how to inprove the quantity of the sale .
3.收到礼物时一定要表达感谢。
Make sure you can give appreciation when you receive a gift .
4.如果想表达合作的意愿，你最好亲自去趟公司。
If you want to express the willing of cooperation ,you'd better go to the company by yourself.

1.as a matter of fact 这是一个固定短语，this year就是今年，不用加in，就像今天today一样，直接用就可以了，前面不用再加介词。
2.提高是improve
3.这里虽没有提到主语，但翻译的时候要加上。
4.“亲自”没有翻译出来，in person 或者by yourself都可以

第二个sale应该改成sales
第三个表达上有点别扭，更好的表达是You should be grateful when you receive a gift.
其他都没有问题，希望能帮助到你。

1.事实上，今年将有更多的旅游者光临我市。
As a matter of fact ,there will be more tourists visting our city this year.
2.事实上，我们正在探讨如何扩大产品的销售量。
As a matter of fact,we are discussing how to improve the quantity of the sale .
3.收到礼物时一定要表达感谢。
you must express your appreciation when you receive a gift .
4.如果想表达合作的意愿，你最好亲自去趟公司。
If you want to express the willing of cooperation ,you'd better go to the company yourself

As the matter of fact是不是题目给定的，不是的话用“in fact”