The time Dr. Wang has devoted _____ the disabled in the past five years is now considered_____of great value.
The judge paid no attention to _____ he had just lost his wife.
Is there a shop around _____ we can buy some toilet articles?
___ smoking here will be fined.
_____ with a good education can apply for the job.
According to the rules, students must not _____ their books during examinations.