单选题
I'm certain David's told you his business troubles. ______, it's no secret that he owes a lot of money to the bank.
A、
However
B、
Anyway
C、
Therefore
D、
Though
【正确答案】
C
【答案解析】
[考点] 词义辨析
[解析] however意为“但是”，anyway意为“无论如何”；therefore意为“因此”；though意为“尽管”。
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