单项选择题
A. is B. are C. was D. were
A. 可能你公司正面临一我们不了解的困难。 B. 也许你公司正面临一我们不明白的困难。 C. 我们不知道你公司正面临困难时有可能的。 D. 有可能你公司正在面临些困难,都是我们不了解的。
A.8:30 in the morning, Tuesday. B.8:30 in the evening, Tuesday. C.8:30 in the morning, Monday. D.8:30 in the evening, Monday.