i need help in creating these kid of sentences

a) a sentence that expresses uncertainity about a price

b) a sentence that contains an abbreviation for a tittle
MY SENTENCE: (The BBC provides UK and worldwide weather services.) is it right???

c) a forceful imperative
MY SENTENCE: ( Go and do your homework.) is it right??

3 answers

a) How much is that carpet?

Your other sentences are fine.
thanks alot ...
You're welcome.