The______of electronic computers has opened up new ways of data analysis for the scientist.
A．advent
B．adverse
C．advert
D．advise

Only a student or two __ to clean the classroom after school.
A．are needed
B．need
C．is needed
D．needs

Tom was totally__ when he received a C on the exam in history, for he was positive that he could have got an A.
A．elated
B．frustrated
C．incited
D．contented

It was on Sunday evening __ all this happened.
A．when
B．that
C．in which
D．on which

Every day, many people come to visit the______of the old castle.
A．location
B．highland
C．site
D．desert

The rain was so heavy that the man was wet to the skin; his whole body was__ and trembling.
A．stiff
B．straight
C．steady
D．hard