Complete the responses to the post in the exercise with while, before, after, and by.

A- I'd see if your friendship develops online (1)______meeting.
B- You could find out if you're still friends (2)______ taking on the phone first.
C- I'd only agree to meet her (3)______ discussing the situation with your parents.
D- You could avoid arguments about the past (4)______ bringing a friend with you​