Students are encouraged to _________ the design competition for robots at the university.
| A．take part | B．operate | C．join to | D．participate in |
About 60 percent of the students ________ from the south; the rest of them ________ from the north and foreign countries.
| A．are; is | B．is; are |
| C．are; are | D．are;/ |
_________ is no possibility _________ China wins FIFA World Cup.
| A．There; that | B．It; that |
| C．There; whether | D．It; whether |
It is true that Zi Bo is a developed city, but many places have lately been _________.
| A．pollute | B．pollution |
| C．polluted | D．position |
You are _________ to have such a good teacher.
| A．fortune | B．fortunate |
| C．fortunately | D．unfortunately |
Bill was doing a lot of physical exercise to build up his_________.
| A．energy | B．force |
| C．strength | D．power |