For each of the following sentences, choose the form of the verb so that the verb tense is consistent with that of the other verbs in the sentence.
For help with this exercise, see Chapter 19.
example
As the Internet has become more familiar over the past fifteen years, the number of Internet users (to increase) dramatically.
a. increased
b. has increased
Many people shop over the Internet and (to read) about topics that interest them.
A. |
B. |
One woman who had been set up on a blind date ran an Internet search on her beau and (to find) that he had been described in an online article as one of the ten worst dates of all time.
A. |
B. |
People are concerned about privacy on the Internet and (to ask) questions about Internet security.
A. |
B. |
The Internet has made knowledge more available, but it also (to raise) new questions about the boundaries between private and public information.
A. |
B. |
Many articles have argued that we are losing our privacy and (to give) examples of what average people do on the Internet.
A. |
B. |
Whenever people order books or (to listen) to music online, they reveal potentially important information about themselves to corporations.
A. |
B. |
Teens talk about personal things on Facebook and sometimes (to post) revealing pictures.
A. |
B. |
Authorities and parents worry that such teens (to be) at risk of being stalked by dangerous people.
A. |
B. |
Some people (to erase) their Internet transactions and other activities with special software that costs a great deal of money.
A. |
B. |
But most of us do not buy this software and (to be) at risk of having our personal preferences and interests becoming public information.
A. |
B. |