英语：Unit2 The Olympic Games 测试（新人教版必修2）河北地区专用

2.  When the mother heard a bomb exploded _____ his son was working, her heart _______, wondering if her son was safe.

    A. where; sank        B. in which ; broke    C. that; was broken     D. at which; sank

3.  The competition to ______ the program is very fierce among the candidates.

    A. have              B. hold              C. host              D. own

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