It is high time we ______ our food habits.
give up
gave up
changed
changing
Explanation:
Correct Answer is: changed
• কোন বাক্যে It is high time, it is time, wish, fancy ইত্যাদি থাকলে verb এর past form হয়।
• তাই এক্ষেত্রে verb টি `changed` হবে।
Source: Advanced Learner`s English Grammar & Composition by Chowdhury & Hossain.