________ have an internal clock that controls the beating of our heart, and the ________ of our breathing.

A．Human being; steps B．Humans; pace

C．Human beings; steps D．Man; pace

—Would you do me a favor to choose a wedding dress?

—Of course, but it is a matter of personal ________.

A．concern B．sense

C．style D．taste

Computer power now allows automatic searches of fingerprint files to match a print at a crime ________.

A．field B．scene

C．location D．occasion

These overseas students who are studying in our college show great ________ for learning a new language.

A．enthusiasm B．authority

C．symptom D．recreation

At the APEC Summit held in Yokohama, Japan, Asia?Pacific leaders addressed ________ over global growth, regional economic development and emerging markets.

A．concerns B．careers

C．adaption D．recognition

The ________ on driving after drinking alcohol is being carried out all over the country, which is helpful to reduce traffic accidents.

A．withdrawal B．prejudice

C．aim D．ban

We bought the house for its ________. It is very near the shop where I work.

A．character B．value

C．convenience D．construction

Being able to speak another language fluently could be a great ________ when you’re looking for a job.

A．advantage B．chance

C．assistance D．importance

—Wow! It's a fantastic decoration! Is it expensive?

—No. It cost next to ________.

A．none B．nothing

C．something D．anything

That region has a lot of natural resources while this one has ________.

A．none B．something

C．all D．nothing