Choose the best variant a, b, or c. There is an example (0) at the beginning. Talk with your (0) parents about the rules for using the Internet. Always (1)                   these rules.
People from all over the world can (2)       you. They are (3)         to you. Don’t forget about this when you are on the Net and you’ll be (4)           .
You shouldn’t give out your (5)            , telephone number, parents’ work address/telephone number without your parents (6)           .
Be very (7)         of any people (8)           they ask you to come to some place, or ask you to give money.
You shouldn’t write e-mail (9)          all in CAPITAL LETTERS, people may think you are angry.
• a parents            b adults                     c sisters
• a care about      b follow                     c argue
• a tell                    b check                      c contact
• a adults               b friends                    c strangers
• a safe                  b dangerous              c cautious
• a permission      b tips                          c address
• a permission      b message                  c contact
• a care                  b cautious                  c dangerous
• a if                       b because                  c before
• a rules                 b messages               c nicknames​