It is reported that in our country cities ________ heavy air pollution that is 30 percent above the national standard or higher should try to meet standards by 2030.
Having lived in China for 8 years, Helen has a good _______ of both English and Chinese.
A lot of people here, _____, Tom, are for the plan that we will go to the beach on foot.
She devoted herself _______ to her research and it earned her a good reputation in her field.
You’d better ______ your score and see if you have passed the exam.
--- What were you so _____ ? ---My son’s not passing the college entrance examination _______ me most.