Not having a good ________ of English can be a serious disadvantage to achieving your goals.
| A．protection | B．appreciation | C．command | D．experience |
After they had each said a few words, _____ Lloyd George took the floor.
| A．and | B．so |
| C．or | D．不填 |
Just before I left London, _____ I sent him a telegram.
| A．and | B．so |
| C．or | D．不填 |
If I’m mistaken, _____ you are mistaken too.
| A．so | B．and |
| C．or | D．不填 |
If wishes were horses, _____ beggars would ride.
| A．and | B．so |
| C．or | D．不填 |
. When the last prize had been awarded _____ everybody cleared off.
| A．and | B．so |
| C．or | D．不填 |