.
It worried her a bit ________ her hair was turning grey.
| A．which | B．that | C．if | D．whether |
__________ of time and energy has been spent in investigating the murder.
| A．A great deal | B．A good many | C．Large numbers | D．Large amounts |
It is _________ of him to tell lies, so don’t trust.
| A．normal | B．ordinary | C．common | D．typical |
Mr. Smith is _______ success as a businessman; he takes _______possession of several big companies.
| A．a; the | B．a; / | C．/; a | D．/; the |
Ten years ago, the population of our village was ______ that of theirs.
| A．as twice large as | B．twice as large as |
| C．twice as much as | D．as twice much as |
She has been working hard day and night, which of course, _______ her pale face.
| A．accounts for | B．stands for | C．goes for | D．answers for |