"Which?" and "what"?

 "Which" and "what" are both interrogative pronouns used to ask questions. However, they are used in different contexts.

"Which" is used to ask a question when a limited number of choices are present, while "what" is used to ask for information when the choices are not limited. Here is a chart that shows the differences between the two:

Interrogative Pronouns	Context	Examples
Which	Limited Choices	Which color do you like better, blue or green?
		Which book did you borrow from the library?
What	Unlimited Choices	What time is it?
		What is your favorite food?

Examples:

1. Which car do you want to buy, the red one or the blue one? (limited choices)
2. What did you do last weekend? (unlimited choices)
3. Which restaurant do you want to go to, Italian or Chinese? (limited choices)
4. What is the capital of France? (unlimited choices)

Exercise:

Fill in the blank with the correct interrogative pronoun:

1. _____ do you prefer, tea or coffee? (Which/What)
2. _____ is your favorite movie? (Which/What)
3. _____ do you want for dinner tonight? (Which/What)
4. _____ time do you usually wake up in the morning? (Which/What)

Answers:

1. Which
2. What
3. What
4. What