—I can never forget the day ___ we spent together in the summer camp．
—Well, especially the day _______it suddenly began to rain in the middle of the night．
| A．when; when | B．which; when | C．what; that | D．on which; when |
— _____ Chinese pianist Lang Lang becomes the first Chinese to be named International Artist of the Year.
—Yes. This is _____historic moment for him.
| A．/; the | B．A; the |
| C．The; a | D．A; a |
—Tim, you are leaving for the Yellow Stone Park tomorrow. Why not pack your clothes and food up now?
—.
A Help yourself B.. Good idea
C. Go ahead, please D. Me, too
Not until all the fish died in the river, ____ how serious the pollution was.
| A．did the villagers realize | B．the villagers realized |
| C．the villagers did realize | D．didn’t the villagers realize |
The fact ________ she seemed to develop normally was very encouraging.
| A．where | B．of which | C．what | D．that |
America was______was first called India by Columbus.
| A．that | B．where |
| C．what | D．the place |