Living in the central Australian desert has its problems, _____ obtaining water is not the least.
| A．of which | B．for what |
| C．as | D．whose |
If we can ______our present difficulties, then everything should be all right.
| A．cone across | B．get over | C．come over | D．get off |
The news of the mayor’s comong to our school for a visit was ______on the radio yesterday.
| A．turned out | B．found out | C．given out | D．carried out |
It was already past midnight and only three young men ______in the house.
| A．left | B．remained | C．delayed | D．deserted |
Modern plastics can ______very high and very low temperatures.
| A．stand | B．seeking | C．finding | D．looking for |
The company is atarting a new advertising campaign to ______new custumers to its stores.
| A．join | B．attract | C．stick | D．transfer |