"we are going shopping" because this is the only sentence without contractions and contractions (such as "we're) are informal
Maybe something like...
"To evaluate the reliability of a health-related website, you look at the author's name. If the name has a Phd or other medical certificate information following it, that means that the information is reliable.
Secondly, if the website is a hospital's website then the health-related website is reliable."
Hope this helps ;)
I believe this is a dependant clause
The correct answer should be additionally.
The word additionally would provide the best transition between these two sentence. It is so because you have one idea in the first sentence, and then you want to show another idea very similar to the first one in the second sentence. Using additionally to convey that is the way to go.
Answer: the clue is that...
Explanation: just did it
