In the 19th century，water power was widely utilized ____ （generate） electricity.（所给词的适当形式填空）

(所给词的适当形式填空)She walked slowly, ________ (lean) on her son's arm. (所给词的适当形式填空)

[单选题]Wordsworth was one of the greatest poets_____lived in the 19th century.A.th

Evolving from the electric telegraph invented in the 19th century, our communica

Yet much had happened between. As was discussed before, it was not until the 19t

[单选题]The growth of specialisation in the 19th century might be more clearly seen in scien -ces such as _______ .A． sociology and chemistryB． physics and psychologyC． sociology and psychologyD． physics and chemistry

[主观题]B．)用所给词的适当形式填空．36． Some_________ (orange) are on the table．

[主观题]B．)用所给词的适当形式填空。36． Jackie Chan is a successful________ (act)．

[主观题]A．)用所给词的适当形式填空。31． Our school music club ____(need) some musicians．

[主观题]V．用所给词的适当形式填空。(10分)36． This is________ (possible) their worst performance ever．

[主观题]B．)根据句义，用括号内所给词的适当形式填空。91.Theoldshouldbespokento______(polite).