Explanation

This is a sentence of Past Indefinite Tense.

Usually first form of verb is used with did.

Go is the first form of verb.

He did not go there. 

Explanation

Apprentice is someone who  works for an expert to learn a particular skill or job.

Apprentice means نو آموز، کار آموز

For example:

He worked for two months  as a plumber’s apprentice

Explanation

Pakistan has four major mountain ranges:

1. Himalaya,
2. Karakoram,
3. Hindu Kush,
4. Sul-e-man Range
   

Explanation

System software acts as a bridge between the hardware and application software.

Some examples of system software are Operating System, Compilers, Interpreter, Assemblers, etc

Explanation

acetone reacts with iodine to form iodoform in the presence of NaOH.

Explanation

Examples of Input Devices

1.       Keyboard.

2.       Mouse.

3.       Touchpad.

4.       Scanner.

5.       Digital Camera.

6.       Microphone.

7.       Joystick.

8.       Graphic Tablet.

&**

Output Device.

Printer

monitor

projector

Explanation

A piece of wood is floating in water. If we heat the water, the piece of wood will sink a little.

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Explanation

A graph is a non-linear data structure that has a finite number of vertices and edges, and these edges are used to connect the vertices.

Explanation

She has been sleeping since morning.

Present perfect continuous tense.

Explanation

Here, both 'will' and 'way' are general term and therefore article 'a' is used.