ইংরেজি ২য় পত্র প্রশ্ন

(a) Unless you study attentively, you will not do well in the examination.
(b) Walk fast lest you should be late.
(c) He will swim after he has taken a rest.
(d) Danger often comes where we do not expect it.
(e) We should take a rest so that we can work again with new energy.

Rule: "unless" has a negative meaning, so the main clause is positive or uses a negative result; "lest" is followed by "should"; after "after" in a future sense we use the present perfect; "so that" shows purpose and takes "can/may".