高考培訓(xùn)
高考培訓(xùn)
互動封閉仿真課堂
1、智能交互 2、電子板書式視頻教學(xué) 3、在線互動問答 4、封閉課堂啟發(fā)式教學(xué)方式
隨堂測試、知識梳理、易錯點揭示、總結(jié)啟迪智能錯題本
聽課中的錯題能自動加入錯題本，課后可方便復(fù)習(xí)及導(dǎo)出錯題本升級服務(wù)
在線答疑、課后同類題練習(xí)、講義下載、短信提醒一、單選
1. The first use of atomic weapons was in 1945, and their power _______increased enormously ever since. (2004 上海，29)
A. is B. was C. has been D. had been
2. —You were out when I dropped in at your house.
—Oh, I ______for a friend from England at the airport. (2004 福建，21)
A. was waiting B. had waited
C. am waiting D. have waited
3. —The window is dirty. (2004 廣西，25)
—I know. It _______for weeks.
A. hasn’t cleaned B. didn’t clean
C. wasn’t cleaned D. hasn’t been cleaned
4. Don’t sit there _______ nothing. Come and help me with this table. (2006 湖北，34)
A. do B. to do C. doing D. and doing
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