Present simple or present continuous 91. My cousin (attend) a university in the Midwest which (specialize) in astronomy. 92. Every time cigarettes (go) up in price, many people (try) to stop smoking. 93. The food that Mother (cook) in the kitchen (smell) delicious. 94. whenever it rain very hard, the stream (overflow). 95. No wonder the house (be) so cold! You always (leave) the the doors open! 96. The film (be) very confusing. You (understand) what (go) on?

Все в Present Simple..
My cousin ateends an Universite in the Midwest which specialize in astronomy. 
Every time cigarettes go up in price, many people try to stop smoking.
The food that mother cooks in the kitchen smells delicious.
Whenever it rain very hard, the stream overflowes.
No wonder the house is so cold! You always leave to the doors open!
The film is very confusing. Do you understand what goes on?