Identify these sentences as simple(S), compound (C) or complex (Co).
1. Hari called, since he was going to be late. ___
2. Patty is my best friend, but sometimes we argue. ____
3. Please bring the computer to me. ____
4. Unless you call them, no action would be taken and no complaint would be filed. ____
5. Utkarsh likes to write, so he writes a lot. _____