Jack: where did Mike go? Eric: I don't know where …………….

Which one of the underlined words or phrases is INCORRECT? My brother explained me the difficult math problem so I was a…

The doctor introduced… ................... to us.

Kate was almost finished with the exam when the teacher………that time was up.

I miss my wife. I wish she………here.

The teacher was in a bad mood and spoke to everyone …………………