Standing on top of the mountain, we watched the sun ____ the horizon.
| A．sink below | B．sinking under | C．sinking below | D．sink under |
The other day I bought a vase, _______ was very reasonable.
| A．the price of whose |
| B．its price |
| C．which price |
| D．the price of which |
We went through a period _____ communications were very difficult in the rural areas.
| A．which |
| B．whose |
| C．in which |
| D．with which |
My documents are always ______ out according to the contents (内容) and dates so that I have no trouble in finding them when they ______.
| A．set; are needed |
| B．put; need |
| C．sorted; are needed |
| D．written; need |
_______ English, the disabled boy could also speak fluent German and French.
| A．In addition |
| B．Except for |
| C．In addition to |
| D．As well |
We _____ the sunshine in Sanya now if it were not for the delay of our flight.
| A．were enjoying | B．would have enjoyed |
| C．would be enjoying | D．will enjoy |