They'd better _________ make any noise in the reading room. It's not allowed.
| A．don't | B．not | C．not to | D．to not |
The old woman couldn't remember __________.
| A．where she puts her cup |
| B．where had she put her cup |
| C．where she had put her cup |
| D．where did she put her cup |
Sherry _______ France many times, so she is very familiar with its capital city, Paris.
| A．have gone to | B．have been to |
| C．has gone to | D．has been to |
The climbers succeeded ______ finding the way and got to the top finally.
| A．in | B．by | C．on | D．To |
It’s difficult to remove the hook _________ the fish in the cold water.
| A．from | B．of | C．to | D．At |