Answer:
English, formal language is used in situations that are more serious, for example when you're in a job interview or emailing your university professor. It can also be used when you're speaking to someone you don't know very well and want to make sure you sound respectful.
Answer:
'He had left the house' can function on its own as a sentence. That's the independent clause. 'before mother arrived' cannot function on its own. it is a sentence fragment, or a dependent clause
She has <span>Arachnophobia</span>
The answer is "<span>Extreme awkwardness."</span>