Giving an Instruction

Read the following dialogue!

Son       : Ooops, sorry?
Mother : You should be more careful next time. Now, clean up the mess.
Son       : Sure, Mom.

The sentences in bold in the dialogue is an expression to instruct someone to do something.

The following are some sentences to instruct someone and their possible responses.

Instructing Someone	Responding
Read the text thoroughly so you can answer all the questions. Don't litter. It will clog the drain. Spend your time effectively to prepare the national exam. Please stop here. I need to buy some drink.	Yes, thanks No, I won't. O.K. Dad, I will Sure.

Remember! Use verb without to (verb base) when you give an instruction (ask someone to do something). Use Don't when you ask someone not to do something.