He ________ his gains and losses of money and the result was a minus.

e _______the railway station, thetrain _______for 5 minutes

Of the two best-sellers，which do you think is________tome

It was careless of you to have left the house without turning off the gas.—My god! _______.

What makes the space shuttle _____ is thatit takes off like a rocket but lands like an airplane.