Answer:
If we have found advanced aliens, we should do our best to make them welcome with a handy travel guide for visiting Earth.
Explanation:
Look ! Somebody 
milk on the carpet. ✔
<h2>MORE:-</h2>
The above sentence is in present perfect tense.
The present perfect tense is used to talk about events that have just completed.
It has the structure:- have/has + past participle.
I think it's the last one. I hope you find the right answer.
Answer:
That Americans should share the benefits and responsibilities of citizenship, because living in a country comes with pros and cons. Being loyal is also very important.
Answer:
This statement is true.
Explanation:
Carbon that enters the body must be separated from the liquid so that the molecules can be taken apart in its digestion process. The water and nutrients in the liquid are used for energy while carbon is let out of the body in a different form because it does more harm than good when it stays in the body. Carbon drinks could dissolve a nail in 4 days. So, the body does it's best not to keep it in the body.
