Anearlytypewriterproducedlettersquicklyandneatly;thetypist,_____couldn'tseehisworkonhismachine.
DoubleEagleinthefirsttransatlanticballoon,wasgreetedbyavidcrowdsinFrance.
Oneofthegreatestbreakthroughsforprofessionalwomencamein1973whenthefieldofbankingopenedupforthem.
1840年鸦片战争以后，中国遭受西方列强“坚船利炮”的欺凌不断加深，中华民族面临生死存亡的形式也日益严峻，中国“睡狮”在西方列强的隆隆炮声中逐渐苏醒。促使中国人民的民族意识开始普遍觉醒的重大事件是
Thisisthe_____pianoonwhichthecomposercreatedsomeofhisgreatestworks.
