My mother likes everything in order, and she always remind us to put things back______ we get them from.
| A．so that | B．in which | C．once | D．where |
Yesterday she sold her car, ______ she bought a month ago.
| A．when | B．where | C．that | D．which |
The Science Museum, ________ we visited during a recent trip to Britain, is one of London’s tourist attractions.
| A．which | B．what | C．that | D．where |
The book was written in 1946, ____ the education system has witnessed great charges.
| A．when | B．during which | C．since then | D．since when |
Some pre-school children go to a day care center,____ they learn simple games and songs.
| A．then | B．there | C．while | D．where |
The Beatles, ________ many of you are old enough to remember, came from Liverpool.
| A．what | B．that | C．how | D．as |