（2012江苏卷）— Happy birthday!
—Thank you! It’s the best present I for.
| A．should have wished | B．must have wished |
| C．may have wished | D．could have wished |
A giant helium（氦） balloon is telling residents of Paris how good or bad the air quality is．When it's good, the balloon ----measuring 22 meters wide and 32 meters high---shines green．_________, it's red．
| A．Though terrible | B．Whenever good |
| C．If worse | D．When bad |
Sustainable development is long-term ______which focuses on the environment and _____ natural resources．
| A．plan; preserve | B．plan; preserving |
| C．planning; preserving | D．planning ;preserve |
at the party, we saw Ruth standing alone in the corner of the hall.
| A．Arriving | B．To arrive | C．Arrive | D．Arrived |
we will do is to leave a note to tell Mum we will be back late.
| A．Whether | B．What | C．That | D．How |
They hurried to the train station, it was too late. They had to wait another ten minutes.
| A．but | B．so | C．and | D．or |