When will Sally and Carol arrive？
I don't know． I have ______here for half an hour．（ ）
A．comeB．leftC．waitedD．arrived
The charity show nearly three hours．Nobody left the hall early．（ ）
A．coveredB．reachedC．spentD．lasted
We haven't decided yet we will place our new furniture．（ ）
A．whereB．whatC．whyD．which
I saw Tom his key in the lock，turn it and open the door．（ ）
A．putB．puttingC．putsD．to put
The house belongs to Mr. Smith，but he here any more．（ ）
A．hasn't livedB．didn't live
C．wasn't livingD．doesn't live
A person likes asking questions．（ ）
A．creativeB．practicalC．patientD．curious