1. Which sentence is written using formal language?
Answer: D. Until recently, it was difficult to start a business, but ton has a crucial appointment early Monday morning.
Explanation: Among the choices above, letter D used a formal language such as "difficult" and "crucial."
The word "difficult" is more formal than "hard" and the word "crucial" is more formal than "very important."
So, this explains the answer.
2. Which contains a spelling error?
Answer: C. Let me have a sneak-peak or I am simply gonna explode.
Explanation: "Sneak-peek" means an opportunity to see something in advance before its preview schedule. In the sentence above, it is wrongly spelled as "sneak-peak."
So, this explains the answer.