―Did you meet Professor Johnson?
―Yes, but when I arrived, he ________, so we only had time for a few words.
| A．had just left | B．has just left |
| C．was just leaving | D．just left |
He arrived here at noon, in the day, and he went out and came back in the day.
| A．late; late | B．late; later | C．later; late | D．later; later |
You are really very kind. I’ll never forget the you have done to me.
| A．favour | B．deed | C．help | D．good |
.A computer is so useful a machine ________ we can use everywhere.
| A．that | B．which | C．as | D．what |
— Why didn’t you come to Mike’s birthday party yesterday?
— Well, I ____, but I forgot it.
| A．should | B．must | C．should have | D．must have |
I the hobby of fishing as a child.
| A．built up | B．set up |
| C．kept up | D．took up |