Quantities of water ________for cooling in the only one of the factories that ________steel.
| A．has been needed；produces | B．have been needed；produce |
| C．is needed；produce | D．are needed；produces |
The vase ____easily. Be careful when you handle it.
| A．will be broken | B．will break | C．is broken | D．breaks |
—Did you see who the driver was?
— No, so quickly _____ that I couldn’t get a good look at his face.
| A．does the car speed by | B．did the car speed by |
| C．the car sped by | D．the car speeds by |
—Going to work today, Brenda?
—No. It’s my day ______ today.
| A．off | B．in | C．away | D．out |
—Ready to give up guessing, Sandy?
—No, no. Hold on! I think I _____at the answer now.
| A．arrive | B．have arrived | C．arrived | D．am arriving |
Leave your key with a neighbor ________ you lock yourself out one day.
| A．soon after | B．even if | C．ever since | D．in case |