Question

She… for 10 hours before she finished everything. a. had been working b. has been working c. was working

Answer 1

Ответ:

She… for 10 hours before she finished everything.

a. had been working

Объяснение:

Используем Past Perfect Continuous т.к. в предложение есть указание на длительное действие (работала 10 часов), которое закончилось до (before) определенного момента в прошлом (finished everything - всё закончила).

Answer 2

The correct answer is:

c. was working

The sentence is in the past tense, and it describes a continuous action that happened before she finished everything. The past continuous tense "was working" is used to indicate an ongoing action in the past. In this case, she worked for 10 hours continuously before completing everything.