You must learn how to take minutes.（英译中)

May I take a picture of you？（英译中)

Once you begin, you must continue.（英译中)

How nice of you to do that!（英译中)

Do you know how to log in to the system？（英译中)

Could you please inform. me how to go about contacting a lawyer？（英译中)

You must keep your promise.（英译中)