When Xie Lei made progress in her study abroad, her parents encouraged her to ____.
I made a fire ____up the room as soon as my father came in.
These achievements_______ without the contribution of Qian Xuesen, a key leader of the New China's nuclear, missile and so on.
_______the match is lost? We can fight again!
In this experiment, the famous professor showed three different____ to the study of physics.
Is this the man yon want to have the radio for me?