___from the top of the tower,the south foot of the mountain is a sea of trees
| A．Seen |
| B．Seeing |
| C．Having seen |
| D．To see |
. The ancient Chinese vases _______ display attracted lots of experts and collectors, some of whom suggested they______ on the next fair.
| A. on; displayed |
B. on; be displayed |
| C. in; displayed |
D. in; be displayed |
. Although their new factory building is still under ________ construction, we have already placed _______ order for 200 pairs of shoes.
| A．the ; an | B．a; an | C．/; / | D．/; an |
. --- I usually go there by bus. It is very crowded.
| A. Why not try to go |
B. Why not try going |
| D. Why try going |
D. Why try to go |
--- _______ there by train? It’s fast and cheap.
. The library’s study room is full of students _______ for the exam.
| A. busily prepared |
B. busy preparing |
| C. busily prepare |
D. are busily preparing |
. --- What a beautiful hat ! How much did it _______ you ?
--- It’s _______. I’m very lucky to be the 1000th customer of the shopping center.
| A. charge; free of charge |
B. charge; free of the charge |
| C. cost; free of charge |
D. cost; free of the charge |