现在完成时Since和for的用法

22.Many things ___impossible in the past are common today. A. considering B. to consider C. considered D. being considered 23.He must have gone out. I heard the noise of the door ___when I was still in bed. A. being locked B. to lock C. locking D...

④close → be closed open → be open 1) The shop closed two hours ago. The shop ___ ___ ___ for ___ ___. 2) The door opened at six in the morning. The door ___ ___ ___ for six hours. ⑤get up → be up die → be dead leave sw. → be away from...

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