The teacher told the pupils that the United States of America _____ 50 states.
| A．was made of | B．made up | C．makes up | D．is made up of |
--- I’m not good at dancing, you know.
--- . It’s just for fun.
| A．All right | B．No problem | C．Come on | D．Cheer up |
BP will continue to be focused on making sure that the costs ________with oil spill cleanup in the Gulf of Mexico are paid.
| A．covered | B．filled | C．occupied | D．associated |
Common people always hold the view the experts say is right.
| A．what that | B．that what | C．that | D．all which |
Unless ________ , the murderer is likely to commit similar or further offences.
| A．to arrest | B．arrested | C．been arrested | D．arresting |
It is the first time that Chinese astronaut Wang Yue________as one of the volunteers for the Mars-500 test project .
| A．has been selected | B．had been selected | C．has selected | D．selected |