Do speak loudly while _______ yourself understood well.

People have been complaining about SK-II recently and think the advertisements always persuade people _________ the products which are not so good. 

I can’t do my lessons with so much noise going on, Tom. I’d appreciate ______ the radio down.

________in a traffic jam yesterday morning，Jack did not arrive at his office on time.

We regret __________ you that we have offered the job to someone else.