________ their son away to college, the old couple got more room in the house．
| A．As | B．For | C．Through | D．With |
.
36. No one knows _________ prevented the rumor from spreading.
| A．what was it that | B．what it was that |
| C．how it was that | D．why it was that |
.
. _________advertisements are of great help, I don’t think we should entirely rely on them.
| A．Since | B．While | C．Once | D．As |
.
I feel honored to introduce Mr White to you, without _________consideration our project
would have ended in failure.
| A．whom | B．that | C．whose | D．who |
.
To our surprise, that top student in our class failed _________a scholarship.
| A．obtain | B．obtaining | C．to obtain | D．obtained |
.
The building burnt down in a big fire. _________was the base on which it stood.
| A．What remained | B．All remained |
| C．What was remained | D．All what remained |