People are puzzled ________ they read the book.
| A．the first time | B．at the first time | C．for the first time | D．at first |
Here are the photos _______ in Beijing.
| A．who are taken | B．that took | C．which I was taken | D．that were taken |
The farmer was very thankful to the doctor ______ treated his son.
| A．what | B．which | C．who | D．whose |
________ he was very ill, he still went on working..
| A．Because | B．For | C．Though | D．/ |
Kentucky is the state _________ Lincoln was born in.
| A．when | B．where | C．-who | D．which |
We bought Granny a present,_______ she didn' t like it.
| A．but | B．and | C．or | D．so |