The incomes of skilled workers went up. _____ , unskilled workers saw their earnings fall.
| A．Moreover | B．Therefore | C．Meanwhile | D．Otherwise |
Experts think that __________recently discovered painting may be ________ Picasso.
| A．the ;不填 |
| B．a ;the |
| C．a ; 不填 |
| D．the; a |
Marco Polo is said to have sailed on Pacific Ocean on his way to Java inthirteenth century.
| A．the; a |
| B．a; / |
| C．/; the |
| D．the; the |
In 1778, Banks was elected ______ president of the Royal Society, ______ position he held for 42 years.
| A．the; the |
| B．a; a |
| C．不填; a |
| D．不填；the |
In order to find ____better job, he decided to study _____second foreign language.
| A．the; a |
| B．a; a |
| C．the; the |
| D．a; the |
________warm atmosphere in our English class has left________deep impression on all the people present.
| A．A；a |
| B．A；/ |
| C．The；/ |
| D．The；a |