Who ______ the workers to take up the struggle A: called for B: called on C: called in D: called off

John<br/>_______ the office as he was passing, but Mary was out. A: called for B: called up C: called on D: called at

Because the chairman of the board was absent, the meeting had to be ______. A: called out B: called on C: called off D: called up

The meeting had to be ____ because of the absence of chairman of the board. A: called out B: called off C: called on D: called up

The plan had been ________, which made him very angry. A: called off B: called up C: called in D: called on

Listen! Someone ________ for help! A: called B: is calling C: has called D: had called

I ______ Mr. Green last week and had a long talk with him. A: called on B: called forth C: called after D: called off

To make our country stronger and richer, the young are ______ to work where they are most needed. A: called on B: called for C: called up D: called off

He called and called but no one came to his .

A word formed by derivation is called a ______ , and a word formed by compounding is called a ______ .