No one but the experts in this field can _____ the difference between them.
| A．recognize | B．speak | C．spot | D．predict |
The report said that today the sea would be and we could enjoy ourselves on the boat.
| A．quiet |
| B．calm |
| C．strong |
| D．nervous |
As a driver, you shouldn’t speed limits in the centre of the city.
| A．put |
| B．ignore |
| C．notice |
| D．take |
Are you concerned your mother when she is out in Africa?
| A．about |
| B．in |
| C．at |
| D．over |
The visitors here are greatly impressed by the fact that people from all walks of life are working hard for new Jiangsu.
| A．/; a |
| B．/; the |
| C．the; a |
| D．the; the |
Tim is in good shape physically he doesn’t get much exercise.
| A．if |
| B．even though |
| C．unless |
| D．as long as |