Such teachers as Mr. Wang ________ (be) always respected by the students.

Ten thousand tons of coal ________ (be) produced last year in that coal mine.

Every teacher and student ________ (have) good reason to be proud of their school.

A large quantity of coal ________ (ship) here since last September.

How to get rid of these things ________ (be) a key problem.

A knife and fork ________ (cost) ten dollars.

His appearance has changed so much that you ____ ____ not recognize him.

You can make the cake ________ mixing eggs and flour.

We rushed ________ trying to get all the information we need before the end of the week.