Past passive questions

被动语态--用动词的正确形式填空。

The first mass-produced cars (introduce) ________________________ by the Ford company in the USA.

被动语态--用动词的正确形式填空。

Vinyl albums and tapes (replace) ___________________________ by CDs, which are now being replaced by mp3.

被动语态--用动词的正确形式填空。

Radios (use) ________________________ to broadcast coded messages during the Second World.

被动语态--用动词的正确形式填空。

Morse code (invent) _____________________ by an American called Samuel Morse.

被动语态--用动词的正确形式填空。

The World Wide Web (design) __________________________ originally to make it easier for nuclear physics researchers to communicate.

被动语态--用动词的正确形式填空。

In ancient times, fires (light) _______________________ to use smoke as a signal over long distances.

被动语态--用动词的正确形式填空。

Buying books and CDs over the Internet (make) ______________________company Amazon.

被动语态--用动词的正确形式填空。

The first mobile phones with cameras (sell) ________________________ in Japan.

被动语态--用动词的正确形式填空。

The world's first television images (show) ___________________________ to scientists in Scotland in 1926.

被动语态--用动词的正确形式填空。

The first English dictionary (wrote) _______________________ by Robert Cawdrey in 1604.