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 |
He’s unlucky, and he’s always suffering _____ luck one after another.
| A．a sick | B．an ill | C．sick | D．ill |
______ part that women _______ in society is great.
| A．The; play | B．A; take | C．A; play | D．The; take |
You are really very kind. I’ll never forget the _________you have done to me.
| A．favour | B．deed | C．help | D．good |
A computer is so useful a machine ________ we can use everywhere.
| A．that | B．which | C．as | D．what |
— Why didn’t you come to Mike’s birthday party yesterday?
— Well, I ____, but I forgot it.
| A．should | B．must | C．should have | D．must have |