When he looked up, he suddenly found himself by a group of teenagers,
looked at him anxiously.
| A．to be surrounded; which | B．surrounded; who |
| C．be surrounded; who | D．having been surrounded; which |
The growing speed of a plant is influenced by a number of factors, ____ are beyond our control.
| A．most of them | B．most of which |
| C．most of what | D．most of that |
We went through a period______communications were very difficult in the rural areas.
| A．wtach | B．whose | C．in which | D．with which |
For many cities in the world, there is no room to spread our further, _______ New York is an example.
| A．for which | B．in which | C．of which | D．from which |
The man pulled out a gold watch,_____were made of small diamonds.
| A．the hands of whom | B．whom the hands of |
| C．which the hands of | D．the hands of which |
Later in this chapter cases will be introduced to readers __ consumer complaints have resulted in changes in the law.
| A．where | B．when |
| C．who | D．which |