One of the most important questions they had to consider was of public health
| A．what | B．this | C．that | D．which |
35. The ______ bodies _______ the world ______ mummies.
| A．preserving; are known to; as | B．preserved; are known as; to |
| C．preserving; are known as; to | D．preserved; are known to; as |
34. The old lady has two daughters, _______ are famous actresses.
| A．both of them | B．both of whom |
| C．each of them | D．none of whom |
33. We were to go out for a walk ________ it began to rain.
| A．while | B．before | C．as | D．when |
32._________on the lonely island_________more difficult than they had expected.
| A．Survivor…proved | B．Surviving…proved |
| C．Survival…was proved | D．To survive…proves |
31. —How long_________each other before they_________married?
—For about a year.
| A．have they known, get | B．did they know, were going to get |
| C．do they know, are going to get | D．had they known, got |