However, at times this balance in nature is disturbed, _______ a number of possibly unforeseen effects.
| A．resulting from | B．resulting in |
| C．having resulted from | D．having resulted in |
I paid him $ 50 for the painting , but its true ___ must be least $500.
| A．price | B．money | C．value | D．importance |
Any student ___ will be disqualitified from the exam.
| A．catching cheating | B．catching to cheat | C．caught cheating | D．caught to cheat |
He asked her to marry him and she ___ him.
| A．answered | B．received | C．accepted | D．agreed |
The course normally attracts 20 students per year, _____ up to half are from abroad.
| A．of whom | B．for whom | C．in which | D．with whom |
Fitness is important in sports but of at least _____ importance are skills.
| A．fair | B．reasonable | C．equal | D．proper |