--Hi, Tracy, you look tired.
--I am tired. I__________ the living-room all day.
| A．painted | B．have been painting |
| C．had painted | D．have painted |
. There were no tickets _____ for Friday’s performance.
| A．preferable | B．possible | C．considerable | D．available |
. The rocks are very big with _____ of colors on them.
| A．bands | B．marks | C．rails | D．shapes |
. The continuous rain was _____ for the exceptional poor harvest
| A．blamed | B．condemned | C．accused | D．charged |
. What you have done is _____ the doctor’s orders.
| A．attached to | B．resistant to |
| C．responsible to | D．contrary to |
. The police refused to _____ the clues they were working on.
| A．exhibit | B．disclose | C．expose | D．discern |