13．到目前為止，我一直未能與他取得聯(lián)系．
SofarIhavebeen unableto get in touch with him．

分析 到目前為止，我一直未能與他取得聯(lián)系．

解答 答案是So far；have been．考查漢譯英．"到目前為止"用固定詞組so far表示，常與現(xiàn)在完成時態(tài)連用．主語I是第一人稱，所以現(xiàn)在完成時態(tài)助動詞用have．題干中unable表示否定，所以have用肯定形式．故答案是So far；have been．

點評 解答此類題目，首先需要明確考查的詞組及固定搭配，然后根據(jù)英語翻譯習慣和相關(guān)語法填寫正確的答案．

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