【推荐1】It is our responsibility as scientists,___________ (know) the great progress that is the fruit of freedom of thought, to declare the value of this freedom. (所给词的适当形式填空)

【推荐2】It is important________ (know) the basic rules of the company.   (所给词的适当形式填空)

【推荐3】We __________ (know) each other since we were children. （所给词的适当形式填空）

【推荐1】“He is the best___________(work)with,” she said. (所给词的适当形式填空)

【推荐2】California was elected________(become) the thirty－first federal state of the USA in 1850. （所给词的适当形式填空）

【推荐3】The government decides to ____________ (location) a new school in the north of the district. (所给词的适当形式填空)