来自刘必欣的问题
thejobwouldrequirethat____at7o'lockeverymorningAhewillbeatthefactoryBhebeatthefactoryChewasatthefactoryDhehasbeenatthefactory
thejobwouldrequirethat____at7o'lockeverymorning
Ahewillbeatthefactory
Bhebeatthefactory
Chewasatthefactory
Dhehasbeenatthefactory

