【推荐1】Recent ________ (study) show that we are far more productive at work if we take short breaks ________ (regular). （所给词的适当形式填空）

【推荐2】The more ________(regular) they can be inspected, the more railway safety, reliability and on-time performance will be improved.（所给词的适当形式填空）

【推荐3】The club members meet__________(regular) to discuss the development of new technology. (所给词的适当形式填空)

【推荐1】The only way to make quality, lasting friendships is to learn to be ________ (genuine) interested in them and their interests. （所给词的适当形式填空）

【推荐2】If you command wisely, you'll be obeyed________(cheerful). (所给词的适当形式填空)

【推荐3】It is normal for children to be ________ about everything. They will ask many questions   ________ and we should answer them patiently to meet their ________. (curious) (所给词的适当形式填空)