Examples:

• The idea of traveling to Japan crossed my mind when I saw a documentary about Tokyo.
• It never crossed my mind that she might not be interested in the project.
• As I was walking through the park, a question about the universe crossed my mind.
• It crossed my mind that we could rearrange the furniture to create more space.
• Did it ever cross your mind that she might need help with her studies?
• The possibility of a promotion had never crossed his mind until his boss mentioned it.
• When I saw the price of the car, the thought of buying it crossed my mind briefly.
• The idea of starting my own business has crossed my mind several times, but I'm not sure where to begin.
• It crossed my mind that we could celebrate her birthday at the beach this year.
• The thought of moving to a new city has crossed my mind lately.
• Has it ever crossed your mind that she might not be telling the truth?
• When she suggested a road trip, it immediately crossed my mind that I hadn't taken time off work.
• It didn't even cross my mind to check the weather before heading out for a hike.
• The thought of retiring early crossed his mind after he received an unexpected inheritance.
• Before making a decision, it's important to let all possibilities cross your mind.
• It had not crossed my mind that she was in fact a crook.