-I expected him to be nervous before his speech, but he was as cool as a cucumbe
来源：网络
时间：
推荐文章
—I expected him to be nervous before his speech, but he was as cool as a cucumber.
—He _______ it carefully.
| A．could have prepared | B．shouldn’t have prepared |
| C．must have prepared | D．can’t have prepared |
试题答案
C
解析试题