I felt very tired when I got home,and I________straight to bed.
The US Space Agency sent up a space probe to hit the moon to see ______.
You can never imagine what great trouble I have had ______the patient who receive a serious wound.
______ of the land in Jia Xing No. 1 Middle School _______ covered with trees and grass.
As is known to all language learners, the newly learnt words will soon be forgotten unless______ used in everyday communication.
The last thirty years _________ the quick development in almost every field in China.