Explanation

The present perfect continuous is formed with have/has been and the -ing form of the verb.

We normally use the present perfect continuous to emphasize that something is still continuing in the present.

Here the person is asking “how long have you been learning?”, this sentence is a present perfect continuous because the subject is still learning English.

Explanation

• The slide that is used to introduce a topic and set the tone for the presentation is called Title Slide.
• The title slide is the first slide of a presentation, usually contains a title and a subtitle.

Explanation

Students are advised to write (their names) in ink. 

when we use ( pen) to write, we use ( ink) instead of (pen).

Then we have to use the preposition ( in ) but not ( with). Eg. I write in ink.

Explanation

WTO: World Trade Organization

WTO members: 164

WTO headquarters: Geneva, Switzerland

WTO was created on January 1, 1995

WTO official languages: English, French, Spanish

WTO is the successor of General Agreement on Tariffs and Trade (GATT).

Pakistan joined World Trade Organization (WTO) on 1 January 1995.

Explanation

• Astonish means حیران کردینا
• "I was astonished at his failure."
  
• In English, "astonished" is typically followed by "at" when expressing surprise or amazement about something.

Explanation

If someone is burning the midnight oil, they are staying up very late in order to study or do some other work.

Here all the other idioms are incorrect.

Explanation

Keeping body and soul together means: having or get enough food and money to survive.

Here all the other idioms are incorrect.

Explanation

Explanation

Infallible means ناقابل فہم

Erring means غلطی

Explanation

"Have an axe to grind" means having a personal stake or selfish motive in a situation.

It often implying a hidden agenda or ulterior motive.