Idiom: Are you in on the latest developments?

[Shanthi]

Test No. express/advan-7 "English Grammar Prepositions", question 4

Are you in on the latest developments?

(a) kept informed about
(b) kept attached to
(c) kept told about
(d) kept written to

Test No. express/advan-7 "English Grammar Prepositions", answer 4

Are you kept informed about the latest developments?

Correct answer: (a) kept informed about
_________________________

Are you in on the latest developments?

[Mister Micawber]

.
In on = informed of/cognizant of.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber

[Haihao]

Hi,

I thought 'be in to' could also mean 'be involved in' so I had chosen (b). Is that impossible?

haihao

[Mister Micawber]

.
Yes, impossible: be into is not the same as be in on, and kept attached to does not mean be involved in. In fact, kept attached to would have no meaning in this sentence.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber

[Haihao]

I am sorry for the misspelling of 'in to' for 'in on' but I got the answer I needed from you all the same. Thank you.