Last year，I （watch） our country's 70th anniversary ceremony （周年庆）on TV．
Intelligent house furnishings（智能家居） are （wide） used in people's homes now．
The Internet has changed our life and the world． However， the Internet has advantages and
（advantages）．
COVID﹣19 （新冠肺炎） happened in many countries， but China has controlled it （well） than other countries．
On his （seven） birthday， he got a new schoolbag as a gift．