In the global economy, a new drug for cancer, it is discovered, will create many economic possibilities around the world.

The trip is free of charge but I’ll take some cash ________.[ ]

How much did you pay for that— I paid _____ that you paid

Carl, why not go andhelp your sister water the flowers there —Why__________ I’m busy myself. Jack is lying on the grass doing nothing.

（题文）—Do you have enough to ________ all your daily expense—Oh, yes, enough and to spare.