It was only after World War II had drawn to a close ______ in the United States.
| A．did the baby boom begin | B．that the baby boom began |
| C．when the baby boom began | D．then the baby boom began |
相关试题
You can’t imagine that a well-behaved gentleman _____ be so rude to a lady.
| A．might | B．need | C．should | D．would |
________ fired, your health care and other benefits will not be immediately cut off.
| A．Would you be | B．Should you be |
| C．Could you be | D．Might you be |
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 |
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 |
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