选择题：●In the following essay, each blank has four choices.Choose the best answer and write down

●In the following essay, each blank has four choices.Choose the best answer and write down on the answer sheet.

Communicating via Email is by far the most common Internet activity.You can (71) with anyone in the world who has an Internet address or Email (72) with a system connection to the Internet.All you need is (73) the Internet and an Email program.Two of the most widely used Email programs are Microsoft's (74) and Netscape's Navigator.A typical Email message has three basic (75) : header, message, and signature.

(71) A．connect

B．exchange

C．communicate

D．game

(72) A．account

B．No.

C．user

D．administrator

(73) A．attach with

B．grasp

C．possess

D．access to

(74) A．Yahoo

B．Explorer

C．Foxmail

D．Outlook Express

(75) A．packets

B．elements

C．frames

D．cells