His efforts to improve the company have been very_____.
A: efficient
B: educational
C: effective
D: economical
A: efficient
B: educational
C: effective
D: economical
举一反三
- Their efforts to improve the school have been very (). (effect)
- Their efforts to improve the corn production have been very (effect)______.
- Do you think company give business gifts have performance? A: very effective B: effective C: only some effective D: have no benefit
- Her boss is very satisfied with her for she is an____secretary. A: effective B: effect C: efficient D: efficiency
- ______ efforts had been made to improve conditions in the jail. A: Slothful B: Strenuous C: Stagnant D: Spacious