Why not unti (till)?

[Elga]

English Grammar Tests, Elementary Level

ESL/EFL Test #55 "Chit Chat: Talking about the Doctor", question 10

Linda: But you can't go ......... I haven't described my other pains.

(a) still
(b) again
(c) till
(d) yet

English Grammar Tests, Elementary Level

ESL/EFL Test #55 "Chit Chat: Talking about the Doctor", answer 10

Linda: But you can't go yet I haven't described my other pains.

Correct answer: (d) yet

Your answer was: incorrect
Linda: But you can't go till I haven't described my other pains.
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why not unti (till)?

Thank you
Elga

[Alan]

Hi,

The sentence should read: You can't go yet (because understood) I haven't finished ...

What you are thinking of is: You can't go until I have finished ... which is a different sentence and 'finished' is negative in the original sentence.

Alan
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English as a Second Language
You can read my ESL story Good Bye Summer

[Zishuli]

Hi, Alan.

I am quite confused by the word " pain" used in this test. I don't really know how to decide either singular form or plural form should be used.
In this test, the word " pain" has appeared quite a few times. There are in question no2: have been in "a lot of pain" , no6: "the pain" in my back, no8: mustn't forget "the pains" in my feet; no10: I haven't described my "other pains".
So, can you please make it clear for me?

[Zishuli]

Hi, Alan.

I am quite confused by the word " pain" used in this test. I don't really know how to decide either singular form or plural form should be used.
In this test, the word " pain" has appeared quite a few times. There are in question no2: have been in "a lot of pain" , no6: "the pain" in my back, no8: mustn't forget "the pains" in my feet; no10: I haven't described my "other pains".
So, can you please make it clear for me?