问题

The boss(老板) makes the workers _____ these machines(机器) for ten hours a day.
A:any time; for
B:some time; for
C:some time; on
D:any time; on;
B:some time; for
C:some time; on
D:any time; on;
正确答案是:
同类题型
I like MrMiner’s speech; it was clear and _____ the point[ ]
Usually an adult man can grow about 1.7 meters tall, _____ a few may grow as short as 1.3 meters
There are some spelling mistakes in your composition , but_________your composition is good[ ]
Are you willing to live on Mars one day— It sounds exciting,but it still worries me.