I _______ 2 hours finishing my homework last weekend.
| A．took | B．cost | C．paid | D．spent |
Please open a window _________ turning on air conditioning.
| A．instead of | B．instead | C．not | D．rather |
In those days ,books could only be produced one at a time _____________.
| A．in hand | B．with hand | C．by hand | D．by hands |
Food safety is important. Rules _____ to stop people from food pollution.
| A．must make | B．must be made | C．mustn’t make | D．mustn’t be made |
—Why don’t we start a school magazine on line? —________
| A．Sounds like a good idea! | B．It doesn’t matter. | C．Thanks for your help. | D．Sorry to hear that. |
The sign 
means _________
| A．No parking | B．No right turn | C．You can’t turn left | D．No entry |