今世界存在各式各样的国家，就国家性质而言却存在较大差异。那么国家的根本属性是 （ ）
| A．社会性 | B．民主性 | C．阶级性 | D．集团性 |
I haven’t finished my work ________.
| A．already | B．just | C．ever | D．yet |
—David, can you tell me how to use this new camera?
—. Let me have a look.
| A．I’m not sure | B．Of course not |
| C．No problem | D．I’m afraid not |
—Oh, Lily, your skirt looks nice. Is it new?
— No, I ____ it for two years.
| A．had | B．have had | C．bought | D．have bought |
That accident happened in the morning is on news now.
| A．a | B．/ | C．an | D．the |
Thanks to the Internet, news can every corner of the world quickly.
| A．arrive | B．go | C．reach | D．get |