(31) ____
A.dense-populated
B.densely-populated
C.dense-populating
D.densely-populating

A.solidarity
B.cooperation
C.voluntarily
D.economically

A.promote
B.enjoy
C.involve
D.realize

A.remember
B.understand
C.imagine
D.encourage

Paul _____come to the wedding. He's working that day.
A.can't
B.doesn't have
C.doesn't have to
D.mustn't

Thailand has dominated in most of the recent ASEAN GAMES in the region, winning the biggest numbers of gold medals.
A.has been the most successful
B.has been the least successful
C.has been the most dedicated
D.has been the least dynamic

It's a long time since he heard from his brother.
A.He hasn't heard to his brother for a long time.
B.He didn't hear from his brother for a long time.
C.He hasn't heard from his brother for a long time.
D.He has heard from his brother for a long time.

Which of the following is the best title of this passage?
A.Be Aware
B.Antivirus Programs
C.How to Kill Viruses
D.Sharing Software

It is inferred that a company can best protect itself from the virus by______
A.ensuring personal hygiene
B.Spreading programs by telephone
C.setting the clock correctly
D.being careful about sharing software

Which of the following is false?
A.There is a new disease that the health inspectors must worry about.
B.People create viruses to damages information that computers store.
C.Computer users should be careful about using shared software.
D.If the virus infects a computer, the information that the computer store may be lost.