I ate sandwich while I was waiting for 20:08 train. (2008陕西卷)
As we all know, surfing _____ Internet has now become _____ popular means of getting information.
—Your hamburger is the best I’ve ever tasted, Ms. Black! —Thanks, Harry. _____.
When he heard the little girl’s cry, he immediately came to ___________.
Einstein liked Bose’s paper so much that he ___ his own work and translated it into German.
The sentence wants ____ once more.