The driver in plain clothes, was extremely calm and brave in face of danger, was just over twenty.
| A．which | B．who | C．when | D．what |
Susan may have missed her train, in _______ case she won’t arrive for another hour.
| A．that | B．what | C．which | D．whose |
Most of the young girls know they should cut down on fat, but knowing such a thing isn’t of much help when it ______ shopping and eating.
| A．refers to | B．comes to | C．speaks of | D．focuses on |
I don’t know for sure how many of you would like to settle here ---- it is a(n) ______ of personal preference.
| A．affair | B．event | C．matter | D．taste |
The number of people ________ this happens is not very large.
| A．with whom | B．to which | C．to whom | D．on which |
A lot of research and studies have shown that Trench oil, taken out from kitchen waste, ______ the increase of cancers.
A appeals to B. attends to C. contributes to D. devotes to