Paris is________most beautiful city，where you can see_______famous Eiffel Tower．
| A．a；the | B．a；不填 | C．the；a | D．不填；the |
There was a _______look on his face when he met with the______problem.
| A．confusing；confusing | B．confused；confused |
| C．confusing；confused | D．confused；confusing |
You’d better go there by train. The train ticket is _______the airplane ticket.
| A．as cheap three times as | B．as three times cheap as |
| C．three times cheaper than | D．cheaper three times than |
On his way to the airport，it ________him all of a sudden that he had forgotten his passport.
| A．hit | B．knocked | C．occurred | D．beat |
Lucy has ________all of the goals she set for herself in high school and is ready for new challenges at university.
| A．acquired | B．finished |
| C．concluded | D．achieved |
He failed the midterm examination and only then ________how much time he had wasted.
| A．he realized | B．did he realize |
| C．he had realized | D．had he realized |