When Mr. Brown got off the train, he found himself________by his students.
It is not how much we do but how much love we put into what we do _____ benefits our work most.
Evidence has been found through years of study _____ children’s early sleeping problems are likely to continue when they grow up.
The singer’s flight was _____ due to bad weather, resulting in the show _____.
As the family did not make a(n) _____ ahead of time, they had to wait at the restaurant in order to get a table.
Some people hold the view that the new machine is advanced, while others are still skeptical _____ whether it is of practical use.