Four phrases/ sentences have been removed from the text below. For each question, mark the letter A, B, C or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks.
Among many inventions that have changed human life, the smartphone is one of the most useful. It is not only a device for making phone calls (37) _______. With a smartphone, people can send messages, search for information, take photos, and use maps to find their way. Because of these functions, smartphones have become an important part of daily life for many people.
(38) _______. Instead of carrying several different devices, users can do many tasks with just one small object. For example, they can read the news, join online classes, listen to music, and even pay for things in shops. In addition, smartphones help people stay connected with family and friends (39) _______.
However, smartphones also have some disadvantages. Many people spend too much time looking at screens and become less active. Some teenagers even find it hard to focus on their studies because (40) _______. Therefore, although the smartphone is a very useful invention, people should use it wisely.
Options:
A. One reason smartphones are so popular is their convenience
B. they use their phones too often for games or social media
C. but also a tool for studying, working, and entertainment
D. no matter where they are
