(¡¡¡¡)1. ________ you show any fear£¬the tiger will attack you.

     A£®Once       B£®Until   C£®Till              D£®While

(¡¡¡¡)2. The master will not attend our meeting ________ he________ free.

     A£®if; will be    B£®if; is    C£®unless; shall be    D£®unless; is

(¡¡¡¡)3. Those who have problems in real marriage would look for other ways to evade (ÌÓ±Ü) their families£¬________ there was no web marriage.

     A£®as if                 B£®only when

     C£®even if               D£®in which