What makes the space shuttle _____ is that it takes off like a rocket but lands like an airplane.
| A．exceptional | B．strange | C．unique | D．rare |
We could hardly believe what she says because she is____ ____changing her mind.
| A．regularly | B．steadily | C．eventually | D．constantly |
—When can I use your computer?
—Never! ________should you touch it.
| A．At no time | B．At some time | C．At any time | D．At one time |
As a film star she was a success, but as a wife she was ________ failure, so their marriage ended in ________ failure.
| A．/; / | B．/; a | C．a; a | D．a; / |
---I need to advertise for a roommate for next term.
---_______ ? Mary is interested.
| A．Why bother | B．Why not | C．So what | D．What for |
Care of the soul is a gradual process ______ even the small details of life should be considered.
| A．what | B．in what | C．which | D．in which |