Rewrite the following sentences that keep the same meaning

Rewrite the following sentences that keep the same meaning.
1. How cruel the witch was!  (WHAT)   
2. You aren’t allowed to come back home after 9.30. (MUST)    
3. It’s not a good ideato play video games too much.  (SHOULDN’T) 
4. People love festivals very much; However, there are also some disadvantages. (ALTHOUGH)
5. The last time we went to Thien Mu Pagoda was in 2014. (SINCE)
6. What a fantastic sightseeing it is! (HOW)