C, the secondary definition
Sugar is uncountable, salt is uncountable, towel is countable, oranges is countable, and oil is uncountable
Answer: When.
Explanation: When, Where, and Why are relative adverbs.
Answer:
The most correct way to write this would be U.S.,
Explanation:
I have a few opitions which are all techincally grammaticlly correct.
First, the radio signals came from the United States; then they came from Canada. (More formal)
...came from the U.S. but then.... (also grammatrically correct)
...from the U.S., then from ....
hope this helps :)