If you had virtual reality holidays, you wouldn't have many problems, such as ________．
A．bad weather
B．a long and boring journey on planes
C．without company(陪同者)
D．Both A and B
________ is a person who enters other people's computer programmes in secret．
A．Cybercrimimal．
B．Hacker．
C．Cyber terrorist．
Hearing a man following her, she ________ and ran as fast as she could.
[ ]
--How do you ________ the disagreement between the company and the customers?
--The key to solving the problem is to meet the demand made by the customers.
UN ______ the United Nations. Shen Guofang ______ our government to give a talk at the congress.
A．represent; represented
B．express; stands for
C．shows; represents
D．stands for; represented
--Would you like to ________ my birthday party this Saturday?
--Sorry, I have an important meeting to ________.
The ________ situation of the chess game really ________ every member in the game-watching room.
Their characters had been tested and had ________ the test.
He began to take political science ________ only when he left school.
As far as I know, his father always devotes himself heart and _______ to his scientific research.