Our visit to Ha Long Bay was great. It was such an UNFORGETTABLE experience. A. frightening B. boring C. uncomfortable D. memorable
C
Heavy rain makes driving on the road very DIFFICULT. A. easy B. hard C. interesting D. simple
B
Teenagers can become ADDICTED to social networking if they cannot control the time they spend online. A. exhausted by B. indifferent to C. hooked on D. dependent on
C
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