We’ll pay a ______visit to the beautiful city if we have enough time.
| A．a four-days | B．a four-day | C．four days | D．a four day |
Just like fingerprints, each person’s DNA is ________unless he has a twin．
| A．unusual | B．normal | C．various | D．unique |
— What do you think of investing in today’s stock market?
— There are many risks, but also many gains．
| A．potential | B．confidential | C．influential | D．preferential |
The new CRH train between Beijing and Shanghai _______ speed once reached about 350km/h has had a 50 kph speed cut to 300 kph.
| A．whose | B．where | C．that | D．which |
These days I have been dreaming of a sale —— Buy two iPads and get completely free．
| A．other | B．the other | C．another | D．all |
Things like eye contact and hand gestures _____ great importance in situations such as job interviews．
| A．take in | B．take off | C．take on | D．take down |