I imported a 1099-B. I reviewed each transaction and all good, except the 1099-b still says needs review. All of the transactions are reviewed so I don't see whats wrong

Go ahead and scroll down to the bottom of the page and click on Continue.   The Needs Review message will NOT prevent e-file.   Before you file the return(s), TurboTax will take you through a Complete Check and will flag any errors that will prevent e-filing then.   You can continuing preparing your returns and ignore the needs review messages.   If there are any errors on the return, the Complete Check in the final review section will prompt you to make changes before submitting the return(s).