改为被动,、 Canadians use French as a second language French—— —— as a second language —— —

题目

改为被动,、 Canadians use French as a second language French—— —— as a second language —— —
They grow rice in South China
Rice —— —— by ——in South China
We should choose Mike for the job
Mike —— —— —— for the job
The boss made him work 10 hours a day
He —— —— —— —— by the boss 10 hours a day

答案