Only in this way ____to make an improvement in the operating system.
A. you can hope B. you did hope C. can you hope D. did you hope
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
