Insert a, an or the if necessary

1. ....................fog was so thick that we couldn't see...........side of............road
2. I can't remember .................exact date of .............storm, but I know it was ........ Sunday because everybody was at .............church
3. Are John and Mary....................cousins - No, they aren't ...........cousins, they are ............brother and .............sister​
4. Professor Jones is.............man who discovered..................new drug that everyone is talking about
5. We're going to.................tea with............ Smiths today. aren't we?
6. It is...................pleasure to do ..............business with such ........efficient organization
7. Would you like to hear.............story about .................... Englishman, ...................Irishman and...........Scotman?
8. There was....................collision between .............car and .......cyclist at...............crossroads in.................early morning.