The research is so designed that once _____ nothing can be done to change it.
| A．begins | B．having begun | C．beginning | D．begun |
They ___________to put their hearts into study..
| A．have made their minds | B．have made their mind |
| C．have made up their minds | D．have made up their mind |
It was a _______story, and we all got ________.
| A．shocking; shocking | B．shocked; shocked |
| C．shocking; shocked | D．shocked; shocking |
Have you really realized the part computer has________ in the daily life?
| A．made | B．given | C．caused | D．played |
He is the only one of the students who __________a winner of scholarship for three years.
| A．is | B．are | C．have been | D．has been |
The snowstorm ________ our difficulties.
| A．added to | B．added up | C．added up to | D．has added |