Many trees ____ along the streets every year. So the air is very fresh now.
| A．plant | B．are planted |
| C．planted | D．were planted |
–Why didn’t you go to see the Breakup Buddies(《心花路放》) with us yesterday?
--Because I _____ twice.
| A．have seen | B．will see |
| C．am seeing | D．see |
Bill Grates is one of ______ people in the world.
| A．the richer | B．richest |
| C．richer | D．the richest |
Susan is so worried because she ______ her ticket, then she can’t go to England on time.
| A．lose | B．lost |
| C．losing | D．will lose |
______ on the light, Tony. It is too dark in the room.
| A．Turning | B．To turn |
| C．Don’t turn | D．Turn |