1. 语法选择

Because of the COVID-19（新冠肺炎）, people need to stay at home. Teachers are trying their best1ways to give lessons to their students at home.

First-grade teacher Katie Ricca of Florida has been giving her Maths lessons every day on the Internet at home.2the same time, she has to take care of the studies of her five little children.

During one class, Katie found a girl3Hannah was not online. "Our class tried talking to her, but there's4with her." Katie said later. When Hannah left the lesson early, she became5.

Once class was over, Katie called Hannah's mum to find out what happened to Hannah. Her mum said that Hannah was sad but didn't know6. After7this, Katie decided to visit Hannah the next day.

"Today her teacher came over and met Hannah for8." Hannah's mum wrote on Facebook. "They talked and read books together. The teacher has five kids at home, but she still cared for my daughter and stayed9an hour to make sure Hannah was OK."

For Katie,10with Hannah was important." Seeing my student sad, l had to show her I care for her," the teacher said.