Soru: Choose the sentence that correctly uses the past continuous tense to describe an action in progress at a specific time in the past.
A) I watched TV yesterday.
B) I was watching TV at 8 PM yesterday.
C) I have watched TV yesterday.
D) I watch TV yesterday.
Çözüm: The past continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific time in the past. Option B, "I was watching TV at 8 PM yesterday," correctly uses the past continuous to show an action in progress at a specific time. Therefore, the answer is B.