21. My father asked me to go on ______ walking tour, but I don’t think I’ve got ______ energy.
    A. a; a            B. the ; the      C. /; the         D. a; the
22. I had been so _________ with my work that I forgot to buy a gift for my daughter’s birthday, which I had promised to.
    A. occupied       B. devoted       C. accompanied    D. buried
23. He is diligent and wise and deserves to_______.
    A succeed        B. success       C. successful       D. successfully