这幅古画怎样被带到日本是一个谜。
参考答案：How the old painting was taken to Japan was a mystery.
—Would you like to go outing with me tonight?
—Oh, with so much homework ________, I’m afraid I couldn’t afford the time.
A．to finish
B．finishing
C．finished
D．finish
数据字典的实现有3种途径：人工过程、自动化过程和______。
