Why not try another way _______ you may do your experiment better and more quickly?

My eldest son, _______ the work takes him all over the world, is in New York at the moment.

Excuse me, Sir. _____either she or I selected to join the team? —-Sorry, neither she or you ______.

If you don’t go there， ．

Once ____ in the forest, you ought to remain ____ you are waiting for help．