Chọn đáp án đúng: Smartphone can be a great learning___but you need to think of how to use it effectively

làm giúp mình từ câu 16 -> 25 nha 
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16. Smartphone can be a great learning
A. benefit
B. choice
17. It is convenient for you to read
but you need to think of how to use it effectively.
C. invention
D. tool
when you travel.
A. e-books
B. laptops
C. online game
19. Many young people carry a pair of earbuds as they are small, light, and
A. chargeable
B. economical
C. portable
20. Washing machine or vacuum cleaner can help
A. kill
B. save
21. Velcro has gradually become a familiar
A. button
B. fastener
22 Most smartphones now
A. display
23. Many students prefer
A. reading
24. Mobile devices such as laptops or digital cameras can be charged by
B. solar-charges
C. solar chargers
A. solar charges
25. We can surf the
A. e-book
to search for news, watch films, or download music.
B. internet
C. laptop
26 In
D. smartphones
D. transferable
you to
time while doing housework.
C. spend
D. waste
for shoes, jackets, and even spacesuits.
C. locker
D. zipper
flash player as well as voice and video calls.
B. offer
C. provide
D. support
assignments on their laptops to writing traditionally.
B. searching
C. sending
D. typing
D. solar-chargers
D. smartphone