We should read books to gain knowledge. (Make it complex)
We should read books for gaining knowledge.
We should read books and gain knowledge.
We should read books so that we can gain knowledge.
Correct
We want to gain knowledge and so we should read books.
Explanation:
Correct Answer is: We should read books so that we can gain knowledge.
Subject + verb + to / in order to + verb যুক্ত Simple Sentence কে Complex Sentence এ পরিবর্তনের নিয়ম:
(1) to / in order to এর স্থলে so that বা in order that বসে।
(2) এরপর একই subject পুনরায় হয়।
(3) verb এর পূর্বে may, might, can, could বসে।
সুতরাং নিয়মানুযায়ী সঠিক উত্তর হবে, we should read books so that we can gain knowledge.