26. One of the founding fathers of the Internet, Vinton Cerf, would no doubt agree that international cooperation is the key to dealing with cybercrime,         he has said that the problem of cybercrime is so large that it requires the United Nations to form a special agency to act as an international referee or steward.

A. when                      B. while                      C. as                           D. which

27. Let’s hope the fine weather         for Sunday’s camping trip.

A. keeps up                  B. picks up                  C. carries on                D. puts up