The problem of carbon emission ____ at Copenhagen Summit has aroused the public’s wide concern.
| A．discussed | B．having been discussed |
| C．being discussed | D．to be discussed |
Children under six are not ___________to school except those of extraordinary intelligence.
| A．permitted | B．admitted | C．accepted | D．received |
--Oh, must you? Stay a longer. It's been such fun having you
--__________. I've got an early start tomorrow morning.
| A．No problem | B．All right | C．Thanks anyway | D．Never mind |
Beijing government puts more than 700 million yuan to increase its green space this year; ____________ doubles the money provided last year.
| A．as | B．while | C．that | D．which |
I can guess you___________ your sweater inside out.
| A．had worn | B．wore | C．are wearing | D．were wearing |
It is only when you nearly lose someone ____________ you fully realize how much you value him.
| A．do | B．then | C．will | D．that |