06年P(guān)ETS二級(jí)最新模擬及答案：?jiǎn)雾?xiàng)選擇2

11. Whenever I met him, _____________ was fairly frequent, ___________ I liked his sweet and hopeful smile.
     A, which ...不填
     B, that ... that
     C, it ... that
     D, what ... 不填