13._________his size, I guessed that he was a basketball player. 
| A．To judge from | B．Having judged by | C．Judging from | D．Judged by |
Our shoes are of great variety and quality.________. Quickly buy it!
| A．Opportunity seldom knocks twice | B．Lies have short legs |
| C．One false move may lose the game | D．Kings go mad, and the people suffer for it |
Each member country of WTO must _____ its laws and regulations and compete on the principle of fairness and co-operation.
| A．reply to | B．correspond to | C．relate to | D．submit to |
_____ sculpture is to a block of marble, education is to a human soul.
| A．That | B．Which | C．What | D．Where |
—Why didn’t you pick up the sunglasses?
—I _____ it, but I didn’t carry that much money.
| A．could buy | B．should buy | C．must have bought | D．could have bought |
. —Do you know why the Yellow River basin is called the Cradle of Chinese Civilization?
—Well, well, _____. I’ve never read about that.
| A．you really have me there | B．there is some doubt | C．I can’t tell you | D．that depends |