Answer:
B. social
Explanation:
The excerpt represents a social letter. We can come to this conclusion because the letter has a friendly and easy-to-understand language that retains the "Mr" and "Mrs" titles, which shows that the letter is not informal. Also, the author of the letter is thanking the hospitality of Mr. and Mrs. Brothers and not dealing with business, this shows that this is not a business letter.
It is that People decide to create systems designed to solve problems, but each solution creates additional problems.
Answer:
I was waiting for you, but you did not come.
It was already late, so she went back home.
Explanation:
When two or more phrases are combined together to form one complete sentence, it can be termed as compound phrases. Compound phrases are combined using words like and, for, so, but, yet, etc.
A compound sentence containing a nominative case pronoun can be "I was waiting for you, but you did not come".
A compound sentence containing an objective case pronoun can be "It was already late, so she went back home".