—Does he work hard at his lessons?
—Yes, he ________ no effort, as far as I know.
| A．wastes | B．shares |
| C．spares | D．makes |
I found him sitting in his chair, completely ________ a magazine.
| A．absorbing | B．being absorbed in |
| C．absorbed in | D．absorbing in |
When _______ different cultures, we often pay attention only to the differences without noticing the many similarities.
| A．compared | B．being compared |
| C．comparing | D．having compared |
She and her roommate silently warred over matters _______ from when the lights should be turned off to how the furniture should be arranged.
| A．ranging | B．exchanging |
| C．transforming | D．varing |
The singer is always very ______ to the reaction of the audience when she gives a performance.
| A．sentimental | B．positive |
| C．sensible | D．sensitive |
---Who do you think is to blame for the boy’s behavior, Mary or her parents?
--- We all think it is Mary as well as her parents that ______ for their son’s bad performance at school.
| A．are to blame | B．is to be blamed |
| C．are to be blamed | D．is to blame |