His sister left home in 1998, and__________ since.
| A．had not been heard of | B．has not been heard of |
| C．had not heard of | D．has not heard of |
_____ and caught the mouse.
| A．Up the cat jumped | B．Up jumped the cat |
| C．The cat up jumped | D．Jumped up the cat |
The old couple will never _____ the loss of their son.
| A．get over | B．get away | C．get off | D．get across |
Sherry is in good shape physically _____ she doesn’t do enough sports.
| A．if | B．even though | C．unless | D．as long as |
All the workers are working hard to create _____ we hope will be the best means of transport in the 21st century.
| A．what | B．where | C．which | D．that |
How I wish I _____ history when I was in university.
| A．study | B．studied | C．would study | D．had studied |