The news ________ your hometown.
| A．is concerned about | B．is concerned in | C．concerns | D．concerns with |
The last river __ _ they crossed is two miles wide.
| A．where | B．which | C．that | D．in which |
This is one of the means ____t he electic energy is conducted from one place to another.
| A．by which | B．by that | C．through which | D．through that |
The buses, ____were already full, were surrounded by an angry crowd.
| A．most of them | B．most of which | C．which most | D．that most |
Can you solve such problems ___raised by the audience?
| A．what were | B．as were | C．that were | D．which were |
We often think of the days ___we spent together on the island.
| A．when | B．which | C．in which | D．during which |