18．______ everyone knows, John has made his promise to his parents ______ he will never play computer games again

We are going to Xinghua Museum by car. You can come with us ______ you can ride there later.

The question of drug-taking is bound to(一定要) ______ at the next conference.

MrBean constantly get into awkward and absurd situations, which greatly amuses audiences _____ their nationalities and culture

Learning to write is learning to think. You don’t knowthings clearly _______ you can write them down.