单选题
Even though the exchange rate was high, we ______ from them.
A、
to buy
B、
must have bought
C、
had to buy
D、
had better buy
【正确答案】
C
【答案解析】
[考点] exchange rate汇率
[解析] 语法题。本题考查情态动词，根据句意应选C，表示“不得不”。
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