________ the parking regulations have become stricter, more people will use public transport and leave their cars at home.
In the US, students can do almost anything they want in class, ____ they don’t make too much noise or disturb others who want to learn from the teacher.
Reaching this agreement so quickly was a great____ for the meeting.
Though having lived abroad for years, many Chinese still _____ the traditional customs.
When such an organised group became too large for its members to travel together comfortably, it would ______.
By the time Jack returned home from England, his son _____from college.