Scientists say it will be five or six years _____ it is possible to test this medicine on human patients.
| A．before | B．that | C．since | D．when |
At first he refused to admit he had stolen but when he was shown the videotape heand admitted everything.
| A．broke up | B．broke away | C．broke down | D．broke in |
--- I had a good holiday at my uncle’s.
--- .
| A．Oh, that’s very nice of you | B．Congratulations |
| C．Oh, I’m glad to hear that | D．It’s a pleasure |
---Hello, Mary. How are you today? I hear you weren’t well last week.
----_________.
| A．Much better now. Thank you | B．Fine, thank you |
| C．I’m afraid not | D．Better than ever, I think |
--- Have you ____ been to our town before?
--- No, it’s the first time I ___ here.
| A．even, come | B．even, have come | C．ever, come | D．ever, have come |
I can’t tell you the exact time when I will get there, maybe at eight or at nine or still later._______, I’ll be there as early as I can.
| A．Anyhow | B．Thus | C．Therefore | D．However |