Question

--How many hours does the boss make the workers __ a day?

Answer 1

A

动词make之后可以接省略to的动词不定式作宾语补足语。即 make sb do “使某人做某事”故本题答案为A。翻译为“--老板让工人每天工作几个小时呀？--大约十个。”