You’re supposed to________others as much as you can．
A．helping
B．help
C．helping with
D．help to
—Oh!My tooth is aching again!
—I think you should have________out in the hospital．
A．to pull it
B．pulled it
C．it pulling
D．it pulled
I was supposed to________8:00，but I was late．
A．arrive at
B．reach at
C．get at
D．arrive in
Mr Brown________Maria goodbye，and handed her the bag．
A．kissed
B．dropped
C．played
D．stuck
The custom________sending birthday cards began in the 19th century．
A．of
B．with
C．on
D．to
People in China________when they meet for the first time．
A．bow
B．kiss
C．shake hands
D．laugh
