Question

1. teenagers in the USA / surprising results / had some / a recent survey of.
→A recent survey of.
2. on Sunday morning / of the club / the regular activity / is a 5 km walk to the beach.
-The regular activity.
3. and secondary students about / to teach primary / the aim of the program is / water safety.
-The aim of the program is
4. table tennis /I don't / with me / have my.
→I don't
5. water / the world's / most of / surface is.
-Most of
6. more about the undersea / to this invention / world thanks / we can learn.
→We can learn.
7. underwater life / he could / of the world and study / explore the oceans.
→He could...
8. for long / until recently /not stay underwater / man could.
→Until recently,
9. to play table tennis / to come to my house /like / would you ?
-Would you..
10. have to finish / I also / for Math tomorrow / this question
-I also..