Only then _________ that I can erase the wrong words I have written, but I can’t erase the things I have done.
| A．did I realize | B．have I realized |
| C．I realized | D．I did realize |
Harry is feeling uncomfortable.He________too much at the party last night.
| A．could drink | B．should drink |
| C．would have drunk | D．must have drunk |
—You needn't take an umbrella.It isn't going to rain.
—Well, I don't know.It________do.
| A．might | B．need | C．would | D．should |
What would have happened ________，as far as up to the river bank.
| A．Bob had walked farther |
| B．if Bob should walk farther |
| C．had Bob walked farther |
| D．if Bob walked farther |
You can't imagine that a well－behaved gentleman ________ be so rude to a lady.
| A．might | B．need | C．should | D．would |
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 |