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.
Because it was snowing hard, buses could _________ get through, _____did taxi appear on the street.
No dictionary can ______all the English idioms.
As a writer, she succeeded in calling ______ to many of the terrible wrongs that existed at that time.
He who is proud of his wealth has rarely _____else to be proud of.
.– She was in clas on Friday afternoon, but no one has seen her since. ---She _____ an accident.