She is an excellent student in our class, and she always herself in her studies.
| A．hides | B．buries | C．covers | D．leaves |
Diets are most effective when _____ with exercise.
| A．combined | B．converted | C．contained | D．claimed |
Research _____ that over 81% of teachers are dissatisfied with their salary.
| A．contrasts | B．indicates | C．highlight | D．reveal |
His work _____ have been completed; otherwise, he wouldn’t be enjoying himself on the beach.
| A．should | B．shouldn’t | C．can’t | D．must |
Many wage earners in big cities find they may only have enough to ____ their houses, cars and other costs of living and have little extra money to invest.
| A．pay off | B．pay for | C．pay back | D．pay |
As ___ matter of fact, it was her attitude towards ____life that moved us most.
| A．a; the | B．a; / | C．/ ; / | D．the; / |