Having been walking for nearly an hour , I ______ a good sleep in bed .
| A．am dying for | B．am dying to | C．am longing to | D．died for |
--- Hey, Mary, your backpack looks nice. When did you buy it.
--- I ____ it for two weeks.
| A．had | B．bought |
| C．have had | D．have bought |
The snowstorm ________ our difficulties.
| A．added to | B．added up |
| C．added up to | D．has added |
．Why do you insist on buying a car ______ you have such good public transportation here?
| A．because | B．unless |
| C．when | D．though |
Thomas wants to know ______Nina lives.
| A．where | B．who |
| C．what | D．if |
Mr. Smith couldn’t open the door because his naughty boy _______ it from the inside
| A．would lock | B．was locking |
| C．has locked | D．had locked |