A．Sarah posed for half an hour.
B．Sarah arrived sooner than expected.
C．Sarah clocked the train at fifty miles per hour.
D．Sarah supported the idea of closing earlier.

A．You should expect better results.
B．Oh, it was terrible to have a fire in a chemical works.
C．Chemistry is always more difficult than physics and Chinese.
D．What a pity because you are working very hard these days.