我最好现在就走，不然上班要迟到了。

I ___had ___better leave now, or I'll be late for work.

你最好带把伞，看上去要下雨了。

You ___had ___better take an umbrella with you; it looks like rain.

她最好别再忘记开会了。

She ___had ___better not forget the meeting again.