It’s always difficult being in a foreign country , ____ when you can’t speak the local language

one of the two women is Mrs. Brown，our neighbor.

What about the two of us ______ to the newly opened theme park in our city this afternoon? [ ]

_______ the plan has been worked out, it’s time for us to get down to carrying it out

Haven’t I told you that you should be home earlier?— Yes, but I home earlier than I usually do.[ ]