________all his courage, he invites Celine to get off the train with him．
A．To gather B．Gathered C．Gathering D．Being gathered
_______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
