With so much noise of the traffic, I couldn’t ____ and do my research work.
| A．put down | B．settle down | C．break down | D．take down |
I’ve heard a whisper ________ David and Heather are heading for marriage.．
| A．what | B．which | C．who | D．that |
Some children want to challenge themselves by learning a language different from ______ their parents speak at home.
| A．what | B．that | C．which | D．One |
Some children want to challenge themselves by learning a language different from ______ their parents speak at home.
| A．what | B．that | C．which | D．One |
______ was most important to her, she told me, was her family.
| A．It | B．This | C．What | D．As |
_____ is known to us all is that the 2008 Olympic Games will take place in Beijing.
| A．It | B．What | C．As | D．Which |