Predicate sentence: Once his costume was off, Bobby walked home.
The predicate is: walked.
I think The answer would be B
Answer:
some comet are very difficult to see because they are made of water and dust and they reflect light very well, so scientists only know about those that make regular appearances, and some comets have not been discovered yet and due to that scientist both sky watchers and strong telescope to report new comets and only them can identify them, although some comet can be seen easily by ordinary people
Explanation:
Although some comet are difficult to see, scientist uses sky watchers to help them to spot them, they also use strong telescope to identify them
Answer:
The tour guide, who has become a good friend, is great!
Explanation:
The commas help separate the two ideas in one sentence correctly. A good way to check that this is correct is to remove the words separated by the commas - "who has become a good friend" - and check if the sentence still makes sense. In this case it would be "The tour guide is great!" which makes sense as a sentence. Thus, this version of the sentence is correct.