_______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
As Susan stared at ______ piles of plastic in her recycling bin, ______ strong sense of responsibility made her stick to her recycling work．
A．不填；不填 B．不填; a C．the ; a D．the; the
