--Has Billy finished his homework today?
--I have no idea. He ______ it this morning.
| A．would do | B．was doing | C．has done | D．had done |
Only when I left my parents for Italy ______ how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
Uncle George didn’t ______ until he was nearly fifty.
| A．settle down | B．put down | C．sit down | D．turn down |
Although badly hurt in the accident, the driver was ______ able to make a phone call.
| A．still | B．even | C．also | D．ever |
The weather was ______ cold that he didn’t like to leave my room.
| A．really | B．such | C．too | D．so |
Dogs have a very good ______ of smell and are often used to search for survivors in an earthquake.
| A．sense | B．view | C．means | D．idea |