In 1831, Faraday discovered that electricity moves through a wire ________ a magnet（磁铁） is moved near the wire.
| A．where | B．so | C．when | D．but |
英语试卷）
If we sit near ______ front of the bus，we will have ________ better view．
| A．不填；the | B．不填；a | C．the；a | D．the； the |
It’s really __________ comfort to the professor that his son has been admitted to __________ Harvard University．
| A．a , / | B．the ，/ | C．/ ，the | D．the，the |
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 |