Put the verbs into the present simple or present progressive :
1. Who (knock) at the door ?
2. It's time we turned on the central heating . It (get) colder every day .
3. Every day I (visit) Britain to improve my English.
4. I (not remember) his name exactly.
5. Don't talk to him while he (read) .
6. How long it (take) you to get to the library , usually ?
7. Of course , you're Mary , aren't you ? I (recongnise) you now .
8. What's the matter ? Why you (look) at me like that ?
9. I can see from what you say that your mornings are very busy! But what you (do) in the afternoons ?