If he had not lost the money, he ________ the piano last week.

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　　－Why did you go back upstairs?

　　－I thought I had left the window ________.

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A book, as well as a pen and a magazine, ________ been left in the reading-room.

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Walter offered us a lift when he was leaving the office, but our work ________, we refused the offer.

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A．not being finished

B．not having finished

C．had not been finished

D．was not finished

I would love ________ to the party last night but I had to work extra hours to finish a report.

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Those naughty boys were caught ________ flowers in the garden again.

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　　－I would like to buy an expensive camera.

　　－Well, we have several models ________.

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I left the door ________ last night, but fortunately, there was no sign of a thief ________.

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A．locked; entering

B．unlocked; corning in

C．unlocked; climbing

D．being locked; going in

I’d like to have myself ________, I want to lose some weight.

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________ the month and the year, the book was put on the book-shelf.

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