Question

Children who are not active or        diet is rich in fat will gain weight quickly.

A．what

B．whose

C．which

D．that

Answer 1

B

考查定语从句，先行词为Children，有两个定语从句，第一个为who are not active，第二个为whose diet is rich in fat will gain weight quickly. Whose作定语修饰diet，故选B。