1. (2022高一下·静安期中) Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A. suitable  B. unfortunately  C. worsen  D. afford  E. risk  F. expensive G. ideally   H. provide     I. solution   J. remain   K. concern

In recent weeks, many parents have realized the difficult truth about school this fall because of COVID-19. Hoping for a better , parents around U. S. have started organizing "pandemic (流行病) pods", or home schooling pods, for the fall, in which groups of 3 to 10 students learn together in homes under the guidance of the children's parents or a hired teacher.

For parents who can organize and  them, pods seem like an easy choice. "I don't believe that the online courses for that age group are . Kids at this age really need that multimodal sensory learning (多模式感官学习)." one parent said.

These pods could  families with a schooling choice that feels safe—yet also allows kids to have fun and build social skills. However, it also has unavoidable shortcomings.

Depending on how the pods are set up, they may offer parents break. But given that pods can be , complicated to organize and self-selecting, it is possible that they are most popular among wealthy families, experts say, and may  educational inequality.

Another  about pods is that families may not know how to minimize Covid risks. Pods shouldn't have more than five kids , said Saskia Popescu, an infection prevention expert. When you add together the teacher and all of the kids' family members, a seemingly small pod ends up including dozens of people, and the more people in it, the greater the  for coronavirus exposure (接触). Furthermore, families in learning pods shouldn't socialize with people outside the pod unless they wear masks and  socially distant, Dr. Popescu said. Pods should have clear rules on wearing masks and washing hands.