The word <em>over </em>is used as an adverb in this sentence.
If the sentence said - There will be clouds over most of the country, then it would be a preposition.
The correct answer is B) because a run-on sentence is a sentence which is incorrectly punctuated. In this case, B doesn't have the right punctuation mark. Instead of a comma (,) perhaps a semicolon (;) should be used.
1. This sentence can mean two things:
1) A child-teaching expert is going to speak.
2) A child is teaching an expert how to speak.
2. This sentence can mean two things:
1) Dogs have faith in the Rehoming Center.
2) The name of the institution - "Dogs Trust Rehoming Center"
3. This sentence can mean two things:
1) Smoking rooms aren't available
2) Rooms in which there is no smoking are available
4. This sentence can mean two things:
1) Anadin is the fastest working medicine
2) Taking nothing instead of Anadin is the better choice
All of these sentences are ambiguous, meaning that they have at least two opposing meanings.
A long exposition differs from a typical stage direction because a stage direction is usually brief. An exposition, however, goes into more detail. A stage direction also just usually tells the setting or where or what the character is doing, or how the stage looks. An exposition shows history and goes full out on the setting.
