题目内容：
回答题The First Bicycle
The history of the bicycle goes back more than200 years.In 1791, Count de Sivrac (51) onlookers in a park inPads as he showed off his two-wheeled invention, a machine called thecelerifere.It was basically an (52) version of a children's toy which had been in (53) for many years.Sivrac's "celerifere" had a wooden frame,made in the (54) of a horse, which was mounted on a wheel ateither end.To ride it, you sat on a small seat, just like a modem bicycle, andpushed (55) against the (56) with your legs—there were no pedals.It was impossible to steer a celerifere and it had nobrakes, but despite these problems the invention very much (57) to the fashionable young men of Paris.Soon they were (58) races up and down the streets.
Minor (59) were common as ridersattempted a final burst of (60)
Controllingthe machine was difficult, as the only way to change (61) was to pull up the front of the "celeriferes" and (62) it round while the front wheel was (63) in the air.The "celeriferes" were not popular for long,however, as the (64) of no springs, no steering and rough roadsmade riding them very uncomfortable.Even so, the wooden celerifere was the (65) of the modem bicycle.
请在第____处填上正确答案。 A．delighted.
B．cheered
C．appreciated
D．overjoyed
参考答案：
答案解析：