“正是”造句

“她在梅费尔有个大公寓。”——“正是。”
"She has a large flat in Mayfair." — "Just so."

对借款人来说,减息的消息来得正是时候。
News of interest cuts came in the nick of time for borrowers.

正是很多父母犯错的地方。
This is where a lot of parents go wrong.