So far nobody has claimed the money __________ in the library.
| A．discovered |
| B．to be discovered |
| C．discovering |
| D．having discovered |
________ excited Geoff Marcy most was ________ there were planets in other solar system where life might exist.
| A．It; if | B．That; whether | C．What; whether | D．What; that |
I am sorry, but I didn’t mean to keep you waiting here for so long. Can you ___________me?
| A．forgive | B．satisfy | C．apologize | D．forget |
This is the very spot ___________gold was discovered long ago
| A．where | B．which | C．when | D．what |
The teacher doesn’t permit ___________in class.
| A．smoke | B．to smoke | C．smoking | D．to have a smoke . |
You should put a small ___________of salt in a cake.
A. quality B. accountC. amount D number