Recently, there is ____ boom（繁荣）in population mobility and according to ____ national population survey of 2004, 17 percent of the population move every year.
| A．the; a | B．a; the | C．/; a | D．the;/ |
------ I ‘m going to join them in the play.
------- ______.
A. Have a pleasure B. That’s a very nice of youＣ. Have fun D. Have a fun
With the change of the economic foundation the entire immense superstructure is _____ rapidly transformed.
| A．anything but | B．more or less | C．at large | D．any more |
These desks and chairs can be ___ to the height of any child.
| A．adjusted | B．adapted | C．fit | D．adopted |
I really don’t know for certain____ they discussed.this important event very secretly.
| A．where was it that | B．where it was that | C．where that | D．it was where that |
_____ you keep on working hard, I don’t mind whether you get good marks in your class.
| A．As long as | B．As soon as | C．As well as | D．as far as |