---Stanly has graduated from the university. ---It’s no wonder that I can’t see him these days. He ___ in the city for six years.
It’s already 10 o’clock. I wonder how it that she was two hours late on such a short trip.
The present financial crisis has put the world economy in a difficult .
There be any difficulty in passing the oral test since you have practiced a lot in the school.
Only lately _____ about the dark secrets behind the seemingly-happy marriage of the golf star Tiger Woods.
The dying man is _____ the help of the doctor.