It was high time we..... our habits,

It was high time we..... our habits, Correct Answer had changed

It is high time- এরপর sub আসলে - এরপর verb - এর past form ব্যবহৃত হয়। Change এর past form হলো changed। এবং It was high time  এর প‌রে had + vpp হ‌বে।
Bissoy MCQ