Question 15: –“What will you do during winter vacation?” –“I don’t kno

Question 15: –“What will you do during winter vacation?”
–“I don’t know, but it’s about time ______something.”

• A. I decided
• B. I’ll decide
• C. I’d decided
• D. I’m deciding

It is (about/high) time + S + V (quá khứ đơn): đã đến lúc cho ai đó làm gì