PET考前真题复习题21_PETS

    notices
    to order your class photograph, sign below. 8.50 each, 20% discount on three or more copies(payment to office immediately, please)
    a.there will be a class photo if enough people sign here.
    b.your photo will cost less if you pay the office in advance.
    c.the price per photo is reduced if several are orders at once.
    答案:c