注意：此页面搜索的是所有试题
题目内容
（英语写作）
We regret ______ unable to agree to the buyer.s request as stated in the L/C stipulations for insurance to be covered up to the inland city.
选项
A: to be
B: being
C: to have been
D: been
选项
A: to be
B: being
C: to have been
D: been
参考答案