It was many years ____ American women were given the rights to vote.
| A．when | B．since | C．before | D．as |
About the economical crisis that he decided to look for more information about it.
| A．So curious he was | B．So curious was he |
| C．Such curious he was | D．Such curious was he |
In hot weather, an old tyre can break again easily it’s mended.
| A．when | B．where | C．which | D．that |
The early warning of floods, over the radio and on TV, spread quickly through the area.
| A．having broadcast | B．broadcasting | C．broadcast | D．to be broadcast |
After visiting China, most of the foreign friends said they would never forget the time _________they had spent in China.
| A．what | B．that | C．when | D．at which |
, I think, and the problem could be settled.
| A．If you don’t doubt your efforts | B．So long as you keep up your spirits |
| C．Making great efforts | D．A bit more efforts |