When he came back, he found the bag he had ______________ over the seat was gone.
| A．left hanging | B．left to hang | C．left hung | D．to leave hanging |
________confidence and the necessary equipmnt, they failed to rescue the 42 miners trapped in the coal mine.
| A．Lack of | B．Lacking of | C．Lacking | D．Having lacked |
—The plan _______for the trip is very important.
—I see, and he is sure to work it out on time.
| A．made | B．to be made | C．making | D．to make |
Can you explain ______ the OPEC can have such total control over the price of oil?
| A．how is it that | B．that how | C．how it is that | D．what is it |
—Do you know the mission of the volunteers?
—No. But I think _____ they will end up doing there will promote public awareness of environmental protection.
| A．that | B．no matter what | C．whatever | D．whether |
The entire hall burst into a great cheer and applause ______ the Nobel Prize winner appeared on the stage accompanied by the chairman.
| A．until | B．while | C．by the time | D．the moment |