单选题
They were _______to go out for a picnic.
A、
well-preparing
B、
well-prepared
C、
good-prepared
D、
well-prepare
【正确答案】
B
【答案解析】
[解析]根据本句句意：他们很愿意去外出野餐。be prepared to do sth．意为“能够并愿意做某事”，这里prepared为形容词，只能由副词well修饰。故本题答案为B。
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