He started to learn English in 1990 and in the years ________ he kept on using it in his work.
—Which flight ________ ? —I want to catch the 13:00.
—You must have met him the other day. —Oh, no, I ________ .
— Have you ever worked with a tape recorder?— I ________ it a lot when I was studying French in school.
— I called you at ten, but there was no reply. —Oh, that was probably when I ________ a shower.
—Could you tell me how your father usually goes to work?—Yes. If it is fine, he ________ to his office.