1. Based on your specialization, provide a detailed example about problem solution memo. [2] 2. Is it possible that clients can send an inquiry letter to companies? Justify your answer? [2] 3. Revise the following long sentences and make them shorter; [2] It is the company's plan to take action to avoid problems with hazardous waste. In December, Ali and Sami will make a visit to the State of Kuwait. 4. Do as required: [2] 1. Find a word that means "empty space" 2. Find the opposite of "still" as an adjective