---- She looks happy. She ________ have passed the exam.
---- I guess so. It’s not difficult after all.
| A．should | B．could |
| C．must | D．might |
Yesterday, Jane walked away from the discussion. Otherwise, she ____ something she would regret later.
| A．had said | B．said |
| C．might say | D．might have said |
Without the air to hold some of the sun’s heat, the earth at night ____ for us to live.
| A．would be freezing cold | B．will be freezing coldly |
| C．would be frozen cold | D．can freeze coldly |
If only he _______ quietly as the doctor instructed, he would not suffer so much now.
| A．lies | B．lay |
| C．had lain | D．should lie |
He hesitated for a moment before kicking the ball, otherwise he ____ a goal.
| A．had scored | B．scored |
| C．would score | D．would have scored |
It is hard for me to imagine what I would be doing today if I ____ in love, at the age of seven, with the Melinda Cox Library in my hometown.
| A．wouldn’t have fallen | B．had not fallen |
| C．should fall | D．were to fall |