The girl in plain clothes, was wonderfully calm in face of danger, was just sixteen years old.
He knows so much about the story. He must have read the book, _______?
He knew the problem was serious and promised to look into it _____ he reached office.
Greatly moved by what she did,_________ .
—How wise of you to come round, but why?— ________ that all is right.
If better use is _____ your spare time, you’ll make greater progress in that.