The monkey is on Mars. (what)
(ริเริมกับคำมีแล้ว คือ what) (Start with the given category: what)

The monkey is on Mars. (what)
>> What ___

The monkey is on Mars. (what)
>> What is ___

The monkey is on Mars. (what)
>> What is on ___

The monkey is on Mars. (what)
(ทุกคำถามมีเครื่องหมายคำถาม) (Questions end in question marks.)

The monkey is on Mars. (where)

The monkey is on Mars. (where)
>> Where ___

The monkey is on Mars. (where)
>> Where is ___

The monkey is on Mars. (where)
>> Where is the ___

The monkey is on Mars. (where)
(อย่าลืมเครื่องหมายคำถาม) (Don't forget the question mark!)

The mouth is below the eyes. (where)

The mouth is below the eyes. (where)
>> Where ___

The mouth is below the eyes. (where)
>> Where is ___

The mouth is below the eyes. (where)
>> Where is the ___

The mouth is below the eyes. (where)
>> Where is the mouth ___

The mouth is below the eyes. (what)

The mouth is below the eyes. (what)
>> What ___

The mouth is below the eyes. (what)
>> What is ___

The mouth is below the eyes. (what)
>> What is below ___

The mouth is below the eyes. (what)
>> What is below the ___

The mouth is below the eyes. (what)
>> What is below the eyes ___

President Obama is in Washington. (who)

President Obama is in Washington. (who)
>> Who ___

President Obama is in Washington. (who)
>> Who is ___

President Obama is in Washington. (who)
>> Who is in ___

President Obama is in Washington. (who)
>> Who is in Washington ___