单项选择题
A work at B. work on C. work out D. work over
I wonder who first conceived the idea of cutting a hole...
单项选择题I wonder who first conceived the idea of cutting a hole in the door.
Mary had sold her bike, taken a driving test and bought...
单项选择题Mary had sold her bike, taken a driving test and bought a car.
Tom is still full of beans at 70.A．courageousB．kindC．en...
单项选择题Tom is still full of beans at 70.
