সে তার বুদ্ধির সাহায্যে সাফল্য লাভ করেছিল। = He achieved success by his own intelligence

I wonder at his ignorance.

He is proficient in music.

গতকাল মাননীয় অর্থমন্ত্রী সংসদে বাজেট পেশ করেছেন। 

= Yesterday the honorable finance Minister presented the budget in Parliament.

He died from over eating

রাজশাহীর আম খুবই সুস্বাদু। 

= The mango of Rajshahi is very delicious.

তোমার বড় ভাই আমার ভাই এর চেয়ে বড় 

= Your elder brother is taller than my brother.

Hard work is the key to success.

এককালে ঢাকা মসলিনের জন্য বিখ্যাত ছিল।

= Once Dhaka was famous for Moslin.

You must abide by the rules of the office.

কাল তেমন ঠান্ডা ছিল না। 

= Yesterday there had not so cold.

There is two High School is our village. 

= There are two High School in our village.

I would help him if he wanted.

His home adjacent with mine

= His home adjacent to mine.

The train is running in time.

= The train is running on time.