3.She understood the company’s problems because she (worked/had been working) there since it started.
4.She was upset because (she lost/had lost) her umbrella.

Question

Английский язык: 3.She understood the company’s problems because she (worked/had been working) there since it started. 4.She was upset because (she lost/had lost) her umbrella.

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3. had been working4. had lostОбъяснение:...