Whilee-booksalesthisyearhavedeclined,itisstillimportan...

問題詳情：

 While e-book sales this year have declined, it is still important for us to remember that the figures are still higher than ______ five years ago.

A. one    B. that

C. those    D. they

【回答】

C

知識點：代詞

題型：選擇題