278. The road constant improvements can’t keep pace with the increasing ____ .
_____ with a good education can apply for the job.
According to the rules, students must not _____ their books during examinations.
She may have missed the train, in _____ case she won't arrive for another hour.
I met several people there, two of _____ being foreigners.
I met several people there, two of _____were foreigners.