We don't know exactly how much it will cost to deal with Covid-19, but it is e _ _ _ _ _ _ _ _ that the US government has spent more than $150 billion by the end of May.

Technology has i _ _ _ _ _ _ _ _ _ _ every aspect of our life.

Children's minds are still very i _ _ _ _ _ _ _ _ _ _ _ _ _, so they are easily affected by advertisements.

Advertisements can m _ _ _ _ _ _ _ _ _ us into buying things we don't need by appealing to our emotions.

Many conservative politicians show a narrow-minded r _ _ _ _ _ _ _ _ _ to change; to them change can never bring anything good.

He was never e _ _ _ _ _ _ _ about what he wanted, so he can't blame us if we misunderstood him.

The strength of the economy has been greatly d _ _ _ _ _ _ _ _ _ since the beginning of the disease outbreak.

Little has been done to a _ _ _ _ the conditions of the minority groups.

E _ _ _ _ _ _ _ to ads for nutrient-poor food can lead to unhealthful food purchases.

Much research has been done to understand the c _ _ _ _ _ _ _ _ process involved in reading.

What has been done to m _ _ _ _ _ _ _ the effects of the earthquake?

Lung cancer has been p _ _ _ _ _ _ _ _ in our society; 4.4 million American could die from lung cancer during the next five decades.

Our boss is very r _ _ _ _ _ _ _ _ to new ideas, so if you think your idea will be helpful to the company, don't hesitate to hand in a proposal.