下列各组字音和字形完全正确的一组是

______was your trip to Mount Emei, Alice一 It wasgreat! We-really had a good time there.

—Have you got your exam papers?—Not yet. I guess they ________ at this moment.[ ]

Now that there is much difficulty in finding a satisfying job, why don’t you do a ______ job to support you for the time being?

There was no sign _______ they had died from diseases such as bird flu – the main worry in such cases. Among the theories was _______ a truck had collided（碰撞）with the crowd.