The mother didn’t know ____to blame for the broken glass as it happened while she was out.
| A．who | B．when | C．how | D．what |
The illness from which Mary is suffering has now been _____ as hepatitis (肝炎).
| A．diagnosed | B．determined | C．deduced | D．discovered |
A completely new situation is likely to _____ when the school leaving age is raised to 16.
| A．arouse | B．rise | C．arise | D．abide |
I must go now. _____, if you want that book I'll bring it next time.
| A．Incidentally | B．Accidentally | C．Occasionally | D．Subsequently |
Achieving a high degree of proficiency in English as a foreign language is not a mysterious _____ without scientific basis.
| A．process | B．practice | C．procedure | D．program |
We had a marvelous holiday: only the last two days were slightly _____ by the weather.
| A．damaged | B．hurt | C．ruined | D．spoiled |