9. Mike must be angry with me, for he walked____me without even saying hello.
| A．past | B．on | C．at | D．over |
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 |
The boss ______ department Ms．King worked in ten years ago looked down upon women．
| A．in which | B．in that | C．whose | D．which |