—I did not know you were good friends. —You__________. I have known her since she moved here. You were abroad then.
When I worked as the general manager of the firm, I sometimes had _____ to visit London on business.
The managing director promised that he would _____ me as soon as he had any further information.
These plastic flowers look so _____ that many people think they are real.
When the big bills for mother’s hospital care came, father was glad he had money in the bank to _____.
. It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.