Correct Answer: peek

Solution : The correct choice is the first option .

Peek means to glance quickly or surreptitiously at something, often by slightly opening or looking through a small opening. In the context of the sentence, if Mr Sharma is opening the door of the stove, it suggests he's likely doing so briefly to take a quick look inside, possibly to check the status of the food.

The meanings of the other options are as follows:

• Pike : It refers to a type of fish or a spear-like weapon.
• Piece : This refers to a part or portion of something, or it can refer to an item or an object.
• Peak : It is the pointed top of something or the highest point.

Therefore, the complete sentence is: Mr Sharma opened the door of the stove to peek .