-- Finding information in today’s world is easy.

-- That’s right. The ____ is how you can tell if the information you get is useful.

A. ability B. competition

C. challenge D. Knowledge

This computer can’t work ____ . It needs to be fixed.

A. gradually B. mostly C. usually D. normally

--It’s a good way to ____ your products on the Internet if you want to attract more customers.

-- Sounds great!

A. make B. send C. leave D. advertise

You needn’t make so many excuses. I ____ your parents.

A. met B. is meeting

C. have met D. will meet

-- Why do you want to study abroad?

-- That experience may help make our life ___ .

A. successful B. useful

C. usual D. traditional

Our teacher always tells us that lessons can be learned to face the future, ____ history can’t be changed.

A. if B. so C. because D. though

--Have you phoned your brother?

--Yes. He ____ to be back next week.

A. expects B. is expected

C. will expect D. is expecting

Don’t be angry with your kid when he makes a mistake again, because ____ of us are perfect at all.

A. none B. neither C. each D. all

--I think Sam is the strongest student in our class.

--I agree with you, but who is the second ____ one?

A. strong B. stronger

C. strongest D. the strongest

--What else must we pay attention to ____ our school clean?

--We must not throw any litter onto the ground.

A. keeping B. kept C. keep D. to keep