So, ________ the government has a good system of control or can educate the people, the forests will slowly disappear.
| A．as long as | B．when | C．unless | D．every time |
---- 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 |
We were shocked at ____ news that he was elected _______ chairman of the Students’ Union
| A．the; the | B．a; the | C．the; / | D．/; / |