Your family is a dependent clause as well as Venice. :)
Answer:
c
i can't explain in detail why it's right i just know because it sounds correct so i know it's right
Wednesday. Heh. Because Wednesday is a person in this
Ending the adjectives with -ed is not needed, so those answers are out. As for the numbers, the rule is usually that numbers one through nine are spelled out whereas number 10 and up are written in numbers. That said, you do not hyphenate the number with the word, so four-letter word would be correct.