If you are traveling ________ the customs are really foreign to your own,please do as the Romans do.
A 19-year-old teenager from Guangdong nicknamed Niko demanded an apology from Youku, which he believed violated their copyrights as it used his team's photos without _________.
The lower production levels are a _________ of dissatisfaction among the workers, so it’s time to raise their salary.
________in space by ordinary citizens will be common.
—Are you free,Jane?Let’s go to watch the movie.—Well,time is________;the real problem is that I haven’t got much money.
You may________it that he will turn up in time.