Choose the correct item 1) you( shouldn't/couldn't) tell anyone your real name online. 2) you (don't have to/shouldn't ) be an expert to scuba dive 3) suzy ( was able to/had to) take lessons before she went diving. 4) you (might/should) chek the weather before you go. 5) you ( don't have to/mustn't) swim alone. 6) some jellyfish stings (must/can) kill you 7) tim( was able to/ could) win the race in the end. 8) you (must/ may) look out for warning signs. 9) dan (had to/could) play the piano when he was six.
2. don't have to
3. had to
4. should
5. mustn't
6. can
7. was able to
8. must
9. could
2.don't have
3.had to
4.should
5mustn't
6.can
7.could
8.must
9.could