Раскройте скобки, употребляя глаголы в Present Continuous или в Present Simple

Раскройте скобки, употребляя глаголы в Present Continuous либо в Present Simple и изъясняя почему
1)He (to work) in the centre of Chicago?
2) He ( not to work) in the centre of Chicago
3) I (not to know) what to give my brother for his birthday
4)They (to want) to publish this book in Jily?
5) She (to think) he ( to drive) dangerously
6) He ( to understsnd) that he (to eat) noisily, but he alwas (to forget) about it