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 |
Tom made a fire_________ us _________ warm yesterday.
| A．make, keep | B．to make, to keep |
| C．to make, keep | D．make, to keep |
–________ did you do yesterday?
–Before I visited my good friends, I went to the zoo.
| A．What other | B．What else |
| C．Where else | D．Else what |
The guide taught us how________ a model robot.
| A．make | B．make | C．makes | D．to make |
The ______doctors like eating beef and _______ noodles.
| A．woman, carrot | B．women, carrots |
| C．women, carrot | D．woman, carrots |
It is important _______________ at others.
| A．to not laugh | B．not to laugh |
| C．not laugh | D．to laugh not |