I found the homework was not so heavy as ________ I ________ to get in my old school.

To make our city more beautiful, rubbish ______ into the river.

a work of ____ , we can’t judge itsvalue by appearances

The expert offered us another piece of advice , ___ of great help to our program.

— At what time did you _______ theoffice— Oh, sorry. I didn’t pay any attentionto the time when I came in.