<span>The oral cavity is a fearsome orifice demanding constant gratification and full 1) of microorganisms, some 2) of which are potentially harmful. The oral mucosa is highly resistant 3) to its indigenous flora and has many defences including the comprehensive suppression 4) with potential pathogens 5) by microorganisms 6) of low virulence. Saliva also has its antibacterial effect. But any lowering 7) of these defences potentiates oral infection.</span>
1) rounder, warmer, damper
2)the biggest, the fastest, the longest
3) His shop is open. Her name is Maya. It doesn't suit me.
4) После can частица to не употребляется
5) It's not snowing. My parents aren't sleeping. We are watching the football match.
6) There's someone at the door. There's something like Bluebell Forest. Would you like something to drink?
No, she was taking a shower
no, the dog wasnt barking