Our study group is ___ three girls and two boys.
| A．made of | B．made from | C．made in | D．made up of |
Ever since the food safety accident, the company has carried out _______ checks on milk products to make sure that they are of high quality..
| A．informal | B．universal |
| C．regular | D．equal |
The businessman is always encouraging his employees to ______ water-based sports, hoping to develop an amateur racing team in his own company.
| A．build up | B．set up | C．keep up | D．take up |
Until the noise of the bus _______ , we were able to hear the program again.
| A．died from | B．died off |
| C．died away | D．died out |
The building is carefully designed so that everyone can leave the building safely if an accident ________.
| A．increases | B．raises | C．rises | D．arises |
Your desk is crowded with too many unnecessary things, including used papers and books. You’s better ______ some of them.
| A．remain | B．recover | C．remove | D．replace |