谓语时态语态问题

Whether he is has .

The manager with some workers during the holidays.

第一句的第一个空为何是进行时态? 而第二个空,decide为何得用被动呢? 第二句为何谓语仍然用单数而不是复数?

Whether he is coming has not been decided.

终止性动词come 的进行时表以后，is coming = will come。

The manager with some workers was working during the holidays.

with 不等于 and。介词短语不是并列，而是方法状语，它对单数的主语 The manager 不产生数的影响，故谓语动词用 was working。我把介词短语调换地方，你就了解了：

The manager was working （主谓）with some workers（方法状语） during the holidays.（时间状语）