Fill in the blanks with appropriate coordinator or subordinator:The buses, most of _________ were already full, were surrounded by an angry crowd

All people, whether they be rich or poor, strong or weak, privileged or deprived，are interdependent, and _______ the common task of seeking to achieve mankinds full potential

______ it or not ,his discovery has created a stir in scientific circles

－ What does the sign over there read － “No person ________ smoke or carry a lighted cigarette, cigar or pipe in this area”

If a student has a problem with classroom work，he or she should______.

If a boy or a girl has grown up in a home with sharing tasks and decisions，he or she will probably______.

Ifa teacher asks students to fill in the blanks in a passage with that, which or whom,he/she is least likely focusing on grammar at_________．

______ it or not , his discovery has created a stir in scientific circles.

Duty is an act or a course of action that people __________you to take by social customs, law or religion.

 ______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

______no air or water, there would be no life in the world.

In speed reading, looking at your watch every 5 or 10 minutes ______.