Health experts in many countries still _________ their ideas about the relationships between our food and our health.
| A．have tested | B．tested | C．are testing | D．test |
Obama, _______ life was once hard when he was young, were elected President of American.
| A．for whom | B．who | C．to whom | D．/ |
Was it in the waiting room ______ only allows mothers-to-be to enter that you lost your wallet?
| A．/ | B．where | C．that | D．when |
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 |