单选题
I ______ dinner at my friend's home when you called me yesterday evening.
A、
[A] had
B、
[B] was having
C、
[C] have had
【正确答案】
【答案解析】
[解析] 此题考查形容词比较级的用法。两者相比较用比较级，比较级在代指事物时前面要加定冠词the。
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