▲两者都对：roadwork在美国英语中是不可数名词，但在英国英语中通常用复数形式。如：

The roadworks brought the traffic to a standstill. 道路维修阻塞了交通。

The traffic was stationary due to three sets of roadwork in less than a mile. 车辆静止不动，由于不到一英里内有3处道路施工。

▲你可以联想一下accommodation：在美国英语中用复数形式 accommodations，但在英国英语中为不可数名词（注意跟roadwork的情形相反）：

The hotel provides accommodation for up to 100 people. 宾馆总共可为100人提供住处。

The catch is that you work for your supper, and the food and accommodations can be very basic. 问题在于你工作是为了顿饭，而且吃住条件非常一般。