Unfortunately, no one knows ________ prevented the rumor from spreading.
| A．what was it that | B．what it was that |
| C．how was it that | D．how it was that |
Being able to speak another language fluently is a great ______ when you're looking for a job.
| A．chance | B．importance | C．advantage | D．assistant |
Mary wanted to travel around the world all by herself，but her parents did not ______ her to do so.
| A．forbid | B．allow | C．follow | D．ask |
Now I come here at the ______ of Mr.Smith to assist him finishing the work.
| A．require | B．remark |
| C．demand | D．request |
He left ______ with my secretary that he would call again in the afternoon.He said he would keep ______.
| A．words；his words |
| B．word；his word |
| C．word；word |
| D．the word；his word |
I sat until after eleven，______in a book.
| A．absorbing |
| B．having absorbed |
| C．absorbed |
| D．having been absorbing |