Test: Module 5 - Test: Module 6 » Стр.22 (1B)

B. Choose a, b or c. 1. I couldn't return your (b) call this morning because I was busy. 2. When you called Carlos on his mobile, was it (c) engaged? 3. Can you explain the (b) difference between a username and a password? 4. Penny says she's getting tired (c) by using social media. 5. This is one of the (c) major companies that provides customers with a good Internet connection. 6. Jerry has just gone around the (a) corner to post a letter. 7. These days, if you live far (a) away from your relatives, it's easy to contact them online. 8. Your tablet must be shut (a) off when you're not using it.