When I returned to my study, I found the floor thoroughly ____ and all my books ____ according to the types of books.
| A．cleaning; ranging |
| B．cleaned; ranged |
| C．have cleaned; ranged |
| D．has cleaned; ranged |
. _______of the household rubbish_______recycled or reused since the new technology was applied.
| A．Three-fourth; has | B．Three-fourth; have been |
| C．Three-fourths; has been | D．Three-fourths; have |
Young people go to college with the expectation that ____________ educated people get a higher pay.
| A．good | B．better | C．best | D．the best |
Write down the key words that you __________ your students to find in the passage.
| A．make | B．hope | C．suggest | D．expect |
I think you should complain __________,of course, you are happy with the way things are.
| A．if | B．unless | C．as | D．because |
_________in charge of the shopping center has upset him for quite some time.
| A．Left | B．Being left | C．Having left | D．To leave |