The Passive

A math course ............. by my cousin (take)

Star .............. by astronomers based on many aspects (classify)

A rabbit ................. by a wolf (eat)

English and Arabic ................ by Kiara (speak)

The jug .......... with iced tea by Hilda (fill)

The guests .................. well by the bell boys (serve)

The contest rules ......... well by the participants (understand)

A stamp ............ on the envelope by Lidya (stick)

The class ........ by some students after the lesson (clean)

The active sentences ............... into the passive ones by the students (change)