It is China _______ is believed to be able to lead the world out of the financial crisis.
| A．which | B．that | C．/ | D．where |
The couple __________.I really don’t know why.
| A．always quarrel |
| B．are always quarreling |
| C．have always quarreled |
| D．have always been quarreled |
—The Chinese astronaut Yang Liwei is here already.
—I__________he__________until tomorrow.
| A．think;is coming | B．thought;would come |
| C．didn’t think;was coming | D．don’t think;will come |
SARS__________ in Hong Kong in the winter of 2002.
| A．was broken out | B．was broke out |
| C．broke out | D．was breaking out |
When you come into the exhibition hall，you can see a large board with a notice on it，saying visitors__________not to touch the exhibits.
| A．will request | B．request |
| C．are requesting | D．are requested |
—Has William finished writing his graduation paper yet?
—I don’t know exactly，but he __________all day.
| A．is writing | B．has been writing |
| C．was writing | D．wrote |