Write the meaning of the following idioms

Cutting edge

Rewrite the following sentences using right form of verbs.

He came here with a view to (help) me.

Translate into English:

চোরে চোরে মাসতুতো ভাই।

Fill in the gap with appropriate preposition:

I was pleased ____ your answer.

Change the voice of the following sentences:

She looks after the orphans. 

Write a paragraph on 'Digital Bangladesh'