Can you tell me it will rain or not tomorrow？（ ）
| A． |
whether |
B． |
if |
C． |
that |
D． |
when |
There are ________people in the square.
| A．thousand of | B．thousands of |
| C．five thousands | D．five thousand |
—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 |