—Was it at 11 o'clock ________ your father came back last night?
—Yes, he is always coming back so late.
| A．that | B．while |
| C．when | D．until |
Gender imbalance has become a serious problem in China, _______ the Chinese government is giving serious thought to.
| A．the one | B．that | C．one | D．those |
In his lecture, the professor referred to the belief ________ the elderly are wise, ________ is particularly dominant(支配的) in Chinese culture.
| A．that; one | B．that; one that | C．which; which | D．that; that |
________ super hurricane of Sandy, sweeping across the USA and many parts of America, has up to now caused ________ loss of over 50 billion dollars to the USA alone.
| A．The; the | B．A; the | C．The; a | D．A; a |
Don’t scold him any more. _______, he is only a child.
| A．After all | B．In all | C．Of all | D．Above all |
---The window is dirty.
----I know. It ______ for weeks.
| A．hasn’t cleaned | B．didn’t clean |
| C．wasn’t cleaned | D．hasn’t been cleaned |