一WhereisMr.Black?Ihaven'tseenhimforalongtime.   一He

問題詳情：

一Where is Mr. Black? I haven't seen him for a long time.

    一He _________Switzerland. He _________there for several months.

    A. has gone to; has been to      B. has gone to; has been

    C. has been to; has been        D. has been to; has gone

【回答】

B

知識點：動詞時態

題型：選擇題