-- Do you think it's a good idea to make friends with your students?-- ______, I do. I think it's a great idea.
. All the students were____ when they heard the_____ news.
Last night he worked until late. _____, he had to walk home in the dark.
_______ with the size of the whole earth, the biggest ocean does not seem big at all.
Nobody wants to__________especially in public.
Struck by the terrible earthquake, Wenchuan, a country in Sichuan province, was _____ from the outside.