—HaveyouevervisitedtheOperaHou

— Have you ever visited the Opera House?
—Yes．When I was in Sydney, I ______ it twice．

A．have visited

B．visited

C．had visited

D．would visit

登录免费查看答案和解析

相关试题

Because of global warming, the ice that polar bears depend on for survival _______.

A．are slowing disappearing	B．is slowly disappearing
C．are slowly disappeared	D．have slowly disappeared

收藏答案/解析

Ten giant pandas are heading to the Shanghai Expo, _________ they will go on year-long display.

A．which

B．where

C．what

D．when

收藏答案/解析

-- The terrible accident is under investigation.
-- Actually, quicker action ________ those workers trapped in the mine.

A．might have saved	B．must have saved
C．should have saved	D．could have saved

收藏答案/解析

A strong earthquake struck Chile's central-south coast on February 22, ________ great damage to buildings

A．caused

B．to cause

C．causing

D．having caused

收藏答案/解析

China has made efforts to respond to _______ climate change, and set targets to control greenhouse gas emissions by 2020.

A．/; /

B．/; the

C．the; /

D．the; the

收藏答案/解析

推荐套卷

热门套卷