1. Friendships between girls are usually anchored in shared feelings and support, but friendships between boys are _______ shared activities or interests.

A. based on                                              B. dependent on

C. based in                                                      D. caught in

2. Generally speaking, the limits of a person’s intelligence are fixed at birth, but whether or not he reaches those limits will ________his environment.

A. depends on                                           B. rely on

C. feed on                                                       D. be depended on