For more information about Britain’s most successful football manager—Sir Alex Ferguson, ________ the book 25 years at Manchester United.
| A．check out | B．account for | C．turnin | D．keep on |
____people in the world are sending information by E-mail every day.
| A．Several million | B．Many millions |
| C．Several millions | D．Many million |
Really great people always see the best in others; it is the little man who looks for the worst and finds.
| A．one | B．it | C．that | D．them |
No one knows exactly when our ancestors started talking，but new evidence suggests _______might have happened a long time ago．
| A．which | B．what | C．it | D．they |
—Do you think_____ worthwhile to go all the way to Los Angles to buy that computer?
—Well ,I’m going to visit some relatives, too.
| A．it | B．/ | C．this | D．that |
Though we found _____difficult to avoid economic and financial crisis, we must take measures to reduce its negative impact.
| A．it | B．one | C．that | D．how |