Question

I ________ swim when I saw a sign written by the police that meant children under 18 are not allowed to swim without the adults guidance．

[　　]

A．

was about to

B．

would

C．

was going to

D．

was to

Answer 1

答案：A
解析：

本句的主要意思是“正当我要游泳时，我看到了……”。B、C、D三项都表示过去将来时，但A项表示更近的将来，意思是“正要、即将”，所以选A项。