Banquo has done nothing wrong. He has been a good friend to Macbeth, never been disloyal nor was he a traitor. But Macbeth was suspicious of him because he was there when one of the prophecies referred to Banquo's heirs being heirs to the throne. Macbeth worries that his good friend will be suspicious of Duncan's murder because he was there when the prophecy said that Macbeth would be king. He wants to avoid a fruitless crown, so he decides to kill Banquo and his son in order to ensure that none of Banquo's issue take the throne after him.
B. The sentence needs a clearer controlling idea
When you get into a store to buy the essentials you need in order to be loaded for at least a week at home, having in-demand items at the front of the store is useful.
To begin with , placing in-demand items just in front of the location is useful for you as a customer because you do not need to waste time looking for the things all around the premises, specially if the place is big.
Second,it is useful for the store owners as they situate the things where they are best spotted and that guarantees the seller the purchase of the goods.
All in all, the position of the in- demand items at the front serves the purpose of the customer, who immediately sees what to buy and that of the retailer who wants their products paid for.
panama........... i think