【題目】The dog may be a good companion for the old. ___________, the need to take it for walks may be a disadvantage.

A. Besides

B. However

C. Therefore

D. Instead

【答案】B

【解析】句意：狗或許是老年人的好伙伴，但是，需要出去遛狗可能會(huì)造成不便�？疾楦痹~辨析。根據(jù)句意可知兩句之間為轉(zhuǎn)折關(guān)系，所以用however(然而)。besides此外；therefore因此；instead相反地。

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