Exercise 2 Writing Passive Verbs
For each verb in parentheses, write the correct passive form.
appear
1. Hypertext documents.
(write) in HTML (hypertext markup language). HTML
looks like regular text, but it includes special symbols (tags) that determine how the document will a
on the computer screen. Links to other web pages or images-
particular symbols.
(call) an algorithm. A
2. A series of steps indicating how to perform a task.
program
(represent) by an algorithm. Programming consists of creating a
program, encoding it so that the computer can read it, and then putting it into the computer. Programs
(refer to)
(call) software, while the computer itself.
as hardware.
3. One of the first computing devices was the abacus. The early
abacus
(make) of beads on rods that____ (hold) by a wooden frame. The abacus_____(use) not only by ancient Chinese but also by the Greeks and romans