1---you didn't come to the dinner party last night
----i___,but i had a sudden visitor from my hometown
a.had to b.didn't c.was going to d.wouldn't
2.linda ,make sure the tables__before the guests arrive
a.be set b.set .c.are setting d.are set
3.people should read the___regulations before they exploit natural resources
a .relating b.related c.connected d.connecting