19. It’s quite an informal gathering ; you needn’t ______for it .
| A．dress down | B．dress up | C．dress | D．dress on |
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I’ll my uncle at Beijing Railway Station.
| A．call for | B．call at | C．call in | D．call up |
You have to be a fairly good speaker to listeners interest for over an hour.
| A．hold | B．make | C．improve | D．receive |
Now than we’ve discussed out problem, are people happy with the decisions ?
| A．taking | B．were taken | C．being taken | D．taken |
twice, the postman refused to deliver our letters unless we chained our dog.
A．Bein g bitten |
B．Bitten | C．Having bitten | D．To be bitten |
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