The roof fell _______ he had time to dash into the room to save his baby.
| A．after | B．as | C．before | D．until |
Some poems tell a story or describe something in a way __________ will give the reader a strong impression.
| A．that | B．in which |
| C．/ | D．how |
some shorts and a T-shirt，__________ is a stupid thing to do in such weather.
| A．this | B．that |
| C．what | D．which |
I have many friends, some __________ are businessmen.
| A．of them | B．from which |
| C．of who | D．of whom |
The president of the World Bank says he has a passion for China，__________ he remembers starting as early as his childhood.
| A．where | B．which |
| C．what | D．when |
The famous scientist said it was his primary school teachers and their lessons __________ he was fond of __________ influenced his whole life.
| A．that; that | B．that; which |
| C．which; which | D．what; that |