156. Such knowledge was______ from father to son.
| A．handed down | B．handed up | C．handed in | D．handed out |
The door _____ open, no matter how hard she pushed.
| A．shouldn’t |
| B．couldn’t |
| C．wouldn’t |
| D．mightn’t |
I still remember the house _____my mother and I used to stay in that evening．
| A．where | B．which | C．in that | D．the one |
John invited about 40 people to his wedding, most of _____ are family members.
| A．them | B．that | C．which | D．whom |
______ surprised the hostess most is _______ one of her friends left the party without saying a word.
| A．What, what | B．What, that |
| C．That, that | D．That, what |
_____ is even important _____ as the earth cooled down, water began to appear on its surface.
| A．That, which | B．What, that |
| C．What, what | D．It, that |