2. Feathers fall to the ground slowly ______ stones fall much faster.
The teacher looked at the student with a smile as if ______ him to answer the question.
Do you like _______when someone speaks to you without looking at you?
Thanks to the vivid ______, the speaker made the abstract concept accessible to all the audience.
---Were you satisfied with the exam result? ---Not a ______. I should have done much ______.
The police set about arresting the suspect ______ they found enough evidence to prove him guilty.