30·You can make a complaint to the local government____ you are happy with the way things are.
| A．unless | B．if | C．once | D．As |
相关试题
He must be helping the old man to water the flowers,______ ?
| A．is he | B．isn’t he | C．must he | D．mustn’t he |
A notice wasin order to remind the students of the changed lecture time.
| A． |
|
B． |
given up |
C． |
set up |
D． |
put up |
sent up—My mother is preparing my favorite dishes. Go with me and have a taste, okay? 
-- ______ . And I’ll be glad to meet your parents.
| A．I think so | B．I’d love to | C．I’m sure | D．I hope so |
My parents don’t mind what job I do _____ I am happy.
| A．even though | B．as soon as | C．as long as | D．as though |
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