____medicine works in a human body is a question ____ not everyone can understand fully.
| A．How; that |
| B．That; which |
| C．What; which |
| D．What; that |
Our school has a library and it ______ more than one million books.
| A．hides | B．remains | C．receives | D．houses |
---Good evening. ______ ?
---Yes, that’s right. We’d like a table on the side.
| A．What for | B．Can I help you | C．What’s the matter | D．Two for dinner |
______ different life today is from ______ it was fifty years ago.
| A．What a; what | B．What a; how | C．How; what | D．What; what |
The driver was at ______ loss when ______ word came that he was forbidden to drive for speeding.
| A．the ; the | B．a ; / | C．/; / | D．a ; the |
My sister ,_____ my family are proud, was admitted to Tsinghua University last autumn.
| A．who | B．which | C．in which | D．of whom |