He stood up and ________ a smile to cover up his disappointment.
A．hid B．managed
C．refused D．brought
The bus ________ with a loud noise of its tyres when the light turned red.
A．pulled up B．put up
C．pumped up D．picked up
To ________ the web page, you press this button, which makes the most recent information appear.
A．refresh B．promote
C．tear D．adopt
——Do you know what your problem is?
—Yes. I always overwork to ________ for lost time.
A．sit up B．keep up
C．make up D．hold up
Don't park your car here, please. It'll ________ the traffic.
A．turn up B．hold up
C．stand up D．get up
Only after he was brought to the police station did the young man ________ he had stolen some purses from other passengers.
A．participate B．realize
C．summarize D．acknowledge
