It was not until she came to see us ____ her mother was ill in bed.
——What’ s the matter?—— The shoes don’ t fit properly.They____my feet.
In this experiment, they are woken up several times during the night, and asked to report what they____.
.When he was alive, the old scientist used to say that knowledge ____from practice and he gained his experience by doing a lot of practical work.
.She _____ to the office than she got down to writing the report.
He ___articles for our wall-newspaper these three years, and he ___about forty articles.