— I was unaware of the mistake until you told me just now. Thank you!
— In fact, you've done a good job.
A.didn't realize B.didn't understand C.didn't compare
—I'm really upset these days.
—Then you have no choice but to relax.
A.should B.want C.forget
The problem is so difficult that no one has been able to solve it so far.
A.just now B.up to now C.from now on
— The story in the film Better Days takes place in a high school.
— I have seen it. It has achieved big success.
A.appears B.happens C.works
—Do you know how to operate the machine?
— Sorry, I don't know.
A.make ... work B.make...stop C.make...see
They spent four days touring around the country.
A.riding B.playing C.travelling
