When do you take the final test at ELTI? (I don't know)
I don't know when I take the final test at ELTI.
How much does a hair cut cost now? (I don't remember)
I don't remember how much a hair cut costs now.
How many times do you get 100 on the tests? (I'm not sure)
I'm not sure how many times I get 100 on the tests.
How high is Mount Everest? (I have no idea)
I have no idea how high Mount Everest is.
