If we go on using energy so wastefully, __________ are that our oil wells will be dried up before new energy sources can be found to replace oil.
| A．chances | B．opportunities | C．questions | D．problems |
It was from only a few supplies that she had bought in the villagethe hostess cooked such a nice dinner.
| A． | where | B． | that | C． | when | D． | which |
Just use this room for the time being, and we'll offer you a larger one（）it becomes available.
| A． | as soon as | B． | unless | C． | as far as | D． | until |
My father warned megoing to the West Coast because it was crowded with tourists.
| A． | by | B． | on | C． | for | D． | against |
Joining the firm as a clerk, he got rapid promotion,andas a manager.
| A． | ended up | B． | dropped out | C． | came back | D． | started off |
Traditional folk arts of Tianjin like paper cutting_______at the culture show of the 2010 Shanghai World Expo.
| A．are exhibiting | B．is exhibiting | C．are being exhibited | D．is being exhibited |