Walk fast lest the train (miss).
would miss
should be missed
will be missed
will miss
Explanation:
Correct Answer is: should be missed
Complete Sentence- টি হবে Walk fast lest the train should be missed.
– Lest যুক্ত sentence এ lest এর পর যে subject থাকে তার পরে should/might বসে।
– এখানে Walk fast lest you should miss the train এর passive form `Walk fast lest the train should be missed` ব্যবহার হয়েছে।
Source: Advanced Learner`s English Grammar & Composition by Chowdhury & Hossain.