Australia's wildfires not only killed many animals, but also shocked people all over the world.
A.hardly B.deeply C.probably
— It's a great challenge for me to study online.
—Me, too. But it's for us to learn to change ourselves and overcome（克服）difficulties.
A.necessary B.impossible C.funny
Nowadays, we can get lots of through the Internet. But we should treat it wisely.
A.information B.newspaper C.language
The natural disasters（灾害） us that destroying the environment is killing ourselves.
A.care B.develop C.warn
—We Chinese will become more confident and united（团结）after the outbreak.
—You do . That's because everyone tried their best to do their jobs well.
A.make an effort B.have a point C.make a difference
—Many doctors, nurses, policemen and soldiers fought bravely in the front line during the outbreak of COVID-19（新冠肺炎）.
—Yes, are the heroes in the hearts of the whole nation.
A.we B.you C.they
