In today's information age, the loss of data _________ cause serious problems for a company.
| A． |
need |
B． |
should |
C． |
can |
D． |
must |
Word came, as expected, ______ college entrance English exam will be reformed soon.
| A．it | B．what |
| C．which | D．that |
is known to all is that Beijing and Zhangjiakou have been trying to co-host the 2022 Winter Olympic Games on Nov 3, 2013.
| A．What | B．Which |
| C．It | D．As |
The book has helped me greatly in my daily communication, especially at work ________ a good impression is a must.
| A．which | B．when |
| C．as | D．where |
The man _______ came to see you is my brother.
| A．who | B．whose |
| C．which | D．where |
English is a language shared by several diverse cultures, _________ uses it differently.
| A．all of which | B．each of which |
| C．all of them | D．each of them |