I have already forgotten ______ you bought the computer.
| A．that it was when | B．that it was what |
| C．what it was that | D．when it was that |
— ?
—Nothing serious, but a bit tired．
| A．Anything the matter with you | B．Is that all |
| C．Anything else | D．What's this |
He was always _______ for knowledge, and at last became an expert in the field of art.
| A．fond | B．content | C．brave | D．greedy |
______ at the crossing and you will see a tall white building.
| A．Turn right | B．Turning right | C．Turned right | D．Being turn right |
Rather than ______ at home playing cards on the Internet, I prefer _______ out for a day trip.
| A．to stay; to go | B．stay; to go | C．to stay; go | D．stay; go |
Two-thirds of the land ________ covered with green grass and the rest _______ covered with pine trees.
| A．is; is | B．is; are | C．are; is | D．are; are |