______ is no doubt that the media play a major role in influencing people’s opinions.

The postman shouted, “Mr Green, here is a letter ______ you.” [ ]

Don’t copy others’ work. If you do it by ________, you’ll feel much better.

If you want to work for our country in the future,_____ you should have strong body and rich knowledge.[ ]

I find ________ difficult to remember everything, though I’m still young.