I write this review while in the midst of one of the most challenging periods in my life. (consumersadvocate.org)
During a very challenging period of my family life I have been met with respect and had every opportunity to have my opinions and wishes heard. (barristerforme.com)
The first few weeks are usually the most challenging period when you introducing a new dog into a home with an existing cat, or vice versa. (positively.com)