Lawrence Craven,a doctor from the USA,is the author of several published reports,one of ________introduced the idea in 1953 aspirin could reduce the risk of heart attacks.
| A．them; when | B．which; that | C．what;that | D．which; when |
Some pre-school children go to a day care center,____ they learn simple games and songs.
| A．then | B．there | C．while | D．where |
The Beatles, ________ many of you are old enough to remember, came from Liverpool.
| A．what | B．that | C．how | D．as |
Women _______ drink more than two cups of coffee a day have a greater chance of having heart disease than those ________ don’t.
| A．who ;不填 | B．不填 ; who |
| C．who ; who | D．不填; 不填 |
If a shop has chairs __________ women can park their men, women will spend more time in the shop.
| A．that | B．which | C．when | D．where |
Helen was much kinder to her youngest son than to the others, __________, of course, made the others envy him.
| A．who | B．that | C．what | D．which |