Advertising is different from other forms of communication in that the advertiser pays for the message .
| A．to deliver | B．delivered | C．to be delivered | D．delivering |
It was Asimov was eleven years old his talent for writing became obvious.
| A．that, when | B．When, which | C．when, when | D．when, that |
Is this the reason _____ at the meeting for his carelessness in his work?
| A．he explained | B．what he explained |
| C．how he explained | D．why he explained |
All these gifts must be mailed immediately__________ in time for Christmas.
| A．in order to have received | B．in order to receive |
| C．so as to be received | D．so as to be receiving |
The glass door have taken the place of the wooden ones at the entrance, _____ in the natural light during the day.
| A．to let | B．letting | C．let | D．having let |
I’d rather have a room of my own , however small it is , than _____ a room with someone else.
| A．to share | B．to have shared | C．share | D．sharing |