Question

—Alice,why didn’t you come yesterday??
—I __________,but I had unexpected visitor.?

A．had

B．would

C．was going to

D．did ?

Answer 1

C　?

从对话but后面分句的含义为“但我却有一位不速之客须接待”。由此可推知其前分句表述的意思应为“我正打算要来（我本打算要来）”。故惟有C项可表达此意，若B项改为would have亦正确。