Am I right? (We desire that the tour leader ... us immediately of any change)

[Aleaf]

1 We desire that the tour leader _____ us immediately of any change in plans.

A. inform B. informs C. informed D. has informed

I think BCD are all acceptable. Am I right?
_________________
Try to change youself before you try to change others.

[Lost_Soul]

I'd go for A - it seems more logical to me
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Alex

How much upchuck would a woodchuck upchuck if a woodchuck could upchuck ?

(a guy from Russia)

[Aleaf]

Is that a "must" or a custom of usage? or if i speak the sentence using BCD will it sound ok?
_________________
Try to change youself before you try to change others.

[Mister Micawber]

.
Verbs of volition ('desire') still require the subjunctive (A - 'inform') in formal composition, though you may hear B occasionally in casual speech. C and D, as past tenses, do not work grammatically or semantically with the present tense 'desire'.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber

[Aleaf]

If the sentence just expresses the speaker's subjective desires which not necessarily come true.
_________________
Try to change youself before you try to change others.

[Aleaf]

I've got it now. thanks so much )
_________________
Try to change youself before you try to change others.

[Lost_Soul]

Take a look at Amy's list of the verbs which might be used with the subjunctive
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Alex

How much upchuck would a woodchuck upchuck if a woodchuck could upchuck ?

(a guy from Russia)

[Yankee]

.
Just a comment about my list:

There are other verbs and phrases that can be and are used with the present subjunctive. My list was intended as a guideline for some of the more common verbs and phrases that are sometimes used with the subjunctive.
In addition, it should be mentioned that there are some fixed expressions that use the subjunctive (e.g. the expressions "So be it" and "Far be it from me to ...")

As MM has also mentioned, the use of the present subjunctive seems to be somewhat more common in American English than in British English.
.
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Amy
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ESL teacher, and native speaker of American English