单项选择题

It was only after some progress ______ in the use and development of electric current that men began to realize the importance and possibilities of magnetism.

A．had been made
B．would have been made
C．has been made
D．was made
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单项选择题
______ is announced in the papers, our country has launched a large-scale movement against smuggling and fraudulent activities in foreign currency exchange deals.
A．What
B．As
C．Which
D．That
单项选择题
When he realized he had been ______ to sign the contract by intrigue, he threatened to start legal proceedings to cancel the agreement.
A．elicited
B．excited
C．deduced
D．induced
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