--- Mr Wang, I have trouble _______ the text.
---- Remember ________ it three times at least.
| A．to understand, reading | B．understanding, reading |
| C．understanding, to read | D．to understand, to read |
Records, ____, walkman CD and MD are the same instruments that we can use to enjoy music.
| A．tapes | B．hammers | C．diamonds | D．telegram |
The limited supply of water has been put into practice, take care to turn off the running ____ before you leave.
| A．radio | B．traffic lights | C．gas | D．tap |
The bank is equipped with new alarm _____. We can say it's safe and reliable completely.
| A．system | B．way | C．order | D．setting |
A_____ has taught us what atoms are made up of and how powerful the atom bomb is.
| A．seaman | B．salesman | C．naturalist | D．scientist |
After work, the young man and his colleagues went to the nearest _____ and sat down at the table for a grand dinner.
| A．bar | B．cafe | C．restaurant | D．dining-room |