Terribly sorry, I came home at last. I _____of the supermarket ________so crowded.

I will do my best to get it for you ______ I could remember who last borrowed it.

It was only after she had read the papers _______ Mary realized the homework before her was extremely difficult to complete.

Though there are some differences in American and Chinese education, both systems are ________ excellent graduates. [ ]

It is a great concern that the school is now ____ for experienced teachers