Nowadays it is difficult for people to find______ work in Europe because_____ economic situation is very serious.
A , an B∕ , the C the, the D a, ∕
As they ______ their way through the desert the sun beat down upon them with more fierceness.
| A．went | B．took | C．came | D．made |
The children had only _______ slight temperature, but the doctor regarded the illness as serious enough for ________ hospital treatment.
| A．a; 不填 | B．不填; the | C．a; the | D．不填; a |
— Can I help myself to something to eat?
— Of course, you are ______ to, you are our guest.
| A．required | B．requested | C．hoped | D．expected |
People who have studied ancient instruments are hoping to learn more about the culture that ______ this ancient flute.
| A．produce | B．produced | C．is producing | D．was produced |
Because natural disasters occur at random times, it is difficult to warn people _______.
| A．at present | B．at last | C．on time | D．in advance |