____the problem of land erosion(侵蚀) getting more serious, the government is searching for a way to deal with it.
| A．As | B．When | C．With | D．If |
---How could you be so rude as to walk in here in the middle of my class?
---_____________
| A．Nothing much | B．Nothing serious | C．Never again | D．Never mind |
– You look so upset, Jane． _____?
-- I have been told my father has got skin cancer．
| A．What’s for | B．What’s up |
| C．So what | D．How’s up |
Hurry up! The train ______． You know it______ at 8:30 am．
| A．leaves; leaves | B．is leaving; is leaving |
| C．leaves; is leaving | D．is leaving; leaves |
________ a precious diamond necklace for his wife, Martin could hardly afford a tie for himself．
| A．Having bought | B．Buying |
| C．Being bought | D．To buy |