I soon found that the work I was doing ____ by someone else — in other words, I was wasting my time.

I soon found that the work I was doing ____ by someone else — in other words, I was wasting my time.

#102953

had already been done

has already been done

would be done

have already been done

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Professor White, along with his wife and children, ________ London for Paris tomorrow.

#100116

are leaving

is leaving

has left

have left

—When are you leaving for Guangdong?—My plane        at six．

#99376

took off

would take off

will take off

takes off

—Have you been to the United States?—Yes, only once. I ________ there only for seven days.

#102373

stayed

had stayed

have stayed

was staying

I have always wanted to go to a good place in the country for a holiday , and now I___about where it should be.

#101846

thought

had thought

was thinking

am thinking

Opposite my school _______ a book store, _______ was built ten years ago.

#99338

is standing, which

stood, it

stands, which

stands, that

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