By the time the sun sets, they() on the project for twelve hours.
A. shall work B. have worked
C. will have worked D. have been working
要解析
句子前面 By the time the sut sets. 是什么时态?
Americans have blond hair and blue eyes. This is perhaps the most obviously inaccurate of all American stereotypes. 选C
美国人是金头发,蓝眼睛。 这也许是对所有美国人印象中最明显不准确之处。
此题考核点是 形容词 副词的最高级。最高级句式常见句型: the most XXXX of /in
此处 obviously 是副词修饰inaccurate (形容词)
A 没有of 无法和后面 all American stereotypes.连起来
B obvious inaccurate 两个词都是形容词,英语中修饰形容词一般都是副词
C 正确
D 没有of 无法和后面 all American stereotypes.连起来,而且obvious inaccurate 两个词都是形容词