Use language that's easy-to-understand. If there's a piece of vocabulary that you feel needs clarifying, define it!
Nobody likes a short, one-word-answer. Let’s make sure other people understand everything.
Explain everything. Imagine that the person who was asking, knows nothing at all so you need to start from the very beginning.
Answer:
I believe your answer is: B. If Tom goes sailing, then Tonya will go surfing. If Tonya goes surfing, then she will catch a cold. So, if Tom did not go sailing. Tonya will not catch a cold.
Explanation:
If Tom = sailing means Tonya = surfing and if Tonya = surfing means Tonya gets a cold, then if Tom does not go sailing then Tonya will not go surfing and get a cold.
Hope this helps.
Answer:
C.
“If there is any practical use for helium other than medicine, laws should change to protect current supplies of the gas.” This sentence summarizes one of the major points of the argument, which is that helium reserves are in low supply.