Is this the museum _____we visited last year?
| A．the one |
| B．that |
| C．where |
| D．in which |
For some time now, world leaders _____ out the necessity for agreement on climate change, the world economy and African development．
| A．had been pointing | B．have been pointing |
| C．were pointing | D．pointed |
Though it is 30 years ____ we last met, I still remember the scene _____ we got separated on a rainy day．
| A．before; where | B．since; where |
| C．before; which | D．since; when |
The fellow left without a word as if ________．
| A．never to return | B．never returning |
| C．he had never returned | D．he would never be returning |
His sacrifices for the country were never officially _____, which made all of us feel discouraged．
| A．acknowledged | B．appealed | C．associated | D．approved |
What a pity! I missed meeting my friend at the airport because my car was _____ in the traffic jam．
| A．broken up | B．held up | C．kept back | D．kept up |