Directions: Find the sentence/part of the sentence having an error/errors with regard to the usage of a comma.

(i) At the supermarket she bought (ii) two loaves of bread a packet of Italian cheese, fresh herbs and vegetables, and a bar of butter (iii) to make her sandwiches for the picnic.

Both part (i) and part (ii) have an error with regard to the usage of a comma. In part (i) of the sentence, a comma must be placed after the adverbial – At the supermarket. In part (ii), a comma must be placed after – two loaves of bread – in order to itemise word groups. In part (iii), there is no need for a comma. The correct form is - (i) At the supermarket, she bought (ii) two loaves of bread, a packet of Italian cheese, fresh herbs and vegetables, and a bar of butter (iii) to make her sandwiches for the picnic.