The phrase "answer only when" is grammatically correct and can be used in written English.
It is commonly used to give a specific condition or circumstance in which someone should respond or provide an answer. Example: "Please answer only when you have fully read and understood the instructions."
I gasped and answered only when I had to.
I listened to his questions and answered only when there was a chance to say something nice about Katja.
Prayers and personal ads are answered only when a person draws himself, his own needs and prerogatives, so movingly that he conjures an "answering" presence where none existed.
Whether it works so well in "football mode" will be answered only when West Ham take on NK Domzale early next month.
According to a senior unionist who has since become disillusioned with his former hero, Paisley answered: "Only when I am on top".
But AT&T's latest results raise a question: If AT&T's customers are not leaving for T-Mobile, then who is? Chetan Sharma, an independent telecommunications analyst who does consulting for carriers, said that question could be answered only when the other carriers report earnings.
The question whether Cam bodian forces would then move back into this territory could, according to the sources, be answered only when it became clear whether the Cambodian troops had the arms and equip ment they required to hold the area, which juts deeply into Vietcong‐controlled territory in South Vietnam.
Struggling to observe the 737 in the dark from the control tower as it embarked on the standard drill for what were known simply as "international flights", Ms Przewlocka started asking herself questions which were answered only when news broke last year of the CIA flights.
Questions will be answered only when a self-addressed stamped envelope is enclosed.
These can be answered only when future studies apply and compare the findings from different working behavioural definitions of autism adjusted qualitatively and/or quantitatively by sex/gender.
