Adjective or Adverb

Make a choice by clicking on theradio button,
then compare it with the correct answer hidden under the answerbutton.
  1. It was not an easy assignment because Dr. Jones didn’t explained it ___.
    careful
    carefully
  2. John is the best student in class. He studies ___.
    hard
    hardly
  3. Be ___ to visitors if you want them to come back to your country.
    nice
    pleasantly
  4. I could not sleep ___ for two nights, so I feel ___ today.
    good, horrible
    well, horrible
    well, horribly
  5. If you drive ___ don't be surprised if you have an accident.
    recklessly
    reckless
  6. She's a inexperienced driver. She can't stop the car ___.
    smoothly
    smooth
  7. The calculus problem requires a ___ evaluation
    serious
    seriously
  8. She speaks so ___ that I can't understand her.
    fast
    fastly
  9. He is an country singer. He sings ___
    beautiful
    beautifully
  10. Driving at sunset can be very ___ sometimes.
    dangerous
    dangerously