The scientist __________ the experiment for half a year, but he _______ yet.

—I’m trying to find yesterday’s newspaper．Have you seen it?—I’m afraid that I ______ it away．I thought you had finished reading it．

Mr. Black _______Shanghai in a few days. Do you know when the earliest plane _______ on Sunday. 

—Good morning，Doctor Brown’s office.—Hello, this is Tom Smith. Could you please tell Doctor Brown I      ? My car       start.

Large quantities of information, as well as some timely help ________ since the organization was built.