People in different countries behave______ when they eat dinner．（ ）
A．differenceB．different
C．differently
—Mike, it is the ________ time in ______ days that you’ve made the same mistake.
—Sorry, sir. I’ll be more careful next time.
| A．two; three | B．second; three |
| C．two; third | D．second; third |
Please turn to page _________ and look at the __________picture in this unit.
| A．twentieth; one | B．twenty; one |
| C．twentieth; first | D．twenty; first |
Their school has more than two _____ teachers and _____ students.
| A．hundreds of, thousands of |
| B．hundred, thousands of |
| C．hundred of, thousand |
| D．hundreds, thousands of |
China has opened its _______Antarctic research base (南极科考站) – the Taishan Station.
| A．four | B．the four |
| C．fourth | D．the fourth |
She is a _____ girl with two big eyes.
| A．six-years-old | B．six-year-old |
| C．six years old | D．six year old |