he referred to in his article was unknown to the general reader.
| A．That | B．What | C．Whether | D．Where |
There is an obvious _________ between the cultures of the west and East.
| A．content | B．contract | C．contrast | D．contact |
The happiest people are not those ________ have the best of everything, but ________ make the best out of everything.
| A．who, that | B．who, who | C．that, who | D．that, that |
Many pregnant women have bought this kind of clothes to ________ radiation.
| A．block | B．protect | C．distinguish | D．guarantee |
No one can tell how many sufferings the kidnapped boy ________ when he was rescued yesterday.
| A．had | B．has had | C．had had | D．would have |
In the Olympic Games all athletes should play fair ________ the rules, but some often take drugs to accomplish their aims.
| A．with | B．for | C．against | D．by |