Drive _____ until you come to the small town, which lies about 100 kilometers _____ London.
| A．north; to the east |
| B．north; east of |
| C．to north; east of |
| D．to north; in the east |
October 1, 1949 was the day ________ the People’s Republic of China was founded．
| A．which | B．when | C．where | D．in which |
I think you have got to the point ________ change is needed, or you would fail
| A．when | B．that | C．where | D．which |
This is the bag ________ my mother bought yesterday．
| A．that | B．who | C．whom | D．this |
He made another wonderful discovery, _____ of great importance to science．
| A．which I think is | B．which I think it is | C．which I think it | D．I think which is |
Luckily, we'd brought a mad map without _______ we would have lost our way．
| A．it | B．that | C．this | D．which |