Let's analyze each option with the provided sentences:
A) "bicycle" could complete the sentence: "My brother rides a bicycle."
B) "friends" could complete the sentence: "I surf on the Internet and meet my friends."
C) "book" could complete the sentence: "My father watches TV and reads a book."
D) "errands" could complete the sentence: "My mother does cleaning and washes the errands."
Therefore, the correct answer is: **D) errands**, as it does not complete any of the sentences.