Thenewsupermarketannouncedthatthefirsttopurchasegoodson...

問題詳情：

The new supermarket announced that the first to purchase goods on the opening day        get a big prize.

    A. must   B. will    C. shall    D. need

【回答】

C

知識點：虛擬語氣與情態動詞

題型：選擇題