---Why don't you go to the lecture-room and listen to the talk? ---I hear there isn't ________in it.
---What can I do for you? --- I’d like_______.
Today, ____ trees are still being cut down somewhere in the world.
I have to study ____ my English test ______ Wednesday morning.
Thanks a lot for ______ me ______ your party.
Mr. Li often tells some jokes to make us_______.