You may change your mind about the trip. In that case, you should get in touch with me as soon as possible. A. Having changed your mind about the trip, you should get in touch with me soon. B
You may change your mind about the trip. In that case, you should get in touch with me as soon as possible.
A. Having changed your mind about the trip, you should get in touch with me soon.
B. If you changed your mind about the trip, get in touch with me as soon as possible.
C. You would call me whether you changed your mind about the trip.
D. Should you change your mind about the trip, contact me as soon as possible.