The most important thing about cotton in history is _____ part that it played in ____ Industrial Revolution．
| A．/; / | B．the; / | C．the; the | D．a; the |
Yesterday we went to visit the farm ____ my father used to work for nearly ten years.
| A．in which | B．that | C．where | D．which |
---- Do you know our town at all?
----No, this ________ the first time I _________ here.
| A．was; has come | B．is; come |
| C．is; had come | D．is; have come |
I prefer studying English at home the match.
| A．to watching | B．to watch | C．rather than watch | D．rather than watching |
It is ____ asking Tom for help, for he is always the last to help others.
| A．useful | B．helpless | C．helpful | D．useless |
You were _______ to take your shoes off when you entered the school lab, but you didn’t.
| A．invited | B．supposed | C．selected | D．worth |