单选题：I appreciated__________the opportunity to study abroad two

题目内容：

I appreciated__________the opportunity to study abroad two years ago． A．having been given
B．having given
C．to have been given
D．to have given

参考答案：

答案解析：

As the economy develops，the number of cars grows rapidly．It

As the economy develops，the number of cars grows rapidly．It brings US with grea

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