I have no idea what half of the words are in the question
1. The race, therefore, was equally challenging to all the contestants.
2. Are you going to join us for tea, Mrs. Collins?
3. The rowers, of course, were exhausted after the three-hour race.
Since it's declarative, it ends with a period. We should add some commas as well.
<em>S</em>chool began on a cold<em>,</em> <em>S</em>eptember morning<em>.
</em>
That should work.
Answer:
B.
Explanation:
"If he begged me on his knees" is not a complete sentence
A. because the wind is an inanimate object.