_______, her hands shook constantly and violently.
| A．Knowing her son killed in the accident |
| B．When she knew her son was killed in the accident |
| C．Known her son killed in the accident |
| D．She knew her son killed in the accident |
In communication, a smile is usually __________ strong sign of a friendly and _______ open attitude.
| A．the, / | B．a, an | C．a, / | D．the, an |
（2011四川卷,18﹚Dr.Peter Spence, headmaster of the school, told us, “ fifth of pupils here go on to study at Oxford and Cambridge.”
| A．不填；A | B．不填；The | C．the; The | D．a; A |
（2011全国卷II,16﹚As he reached front door, Jack saw strange sight.
| A．the;不填 | B．a; the | C．不填a | D．the; a |
（2011全国卷,33﹚It is generally accepted that boy must learn to stand up and fight like man.
| A．a; a | B．a; the | C．the; the | D．a; 不填 |
（2011浙江卷,2﹚Experts think that __________recently discovered painting may be ________ Picsso.
| A．the ;不填 | B．a ;the | C．a ; 不填 | D．the; a |