Each of the girls________wearing a beautiful skirt now．
A．is
B．are
C．am
D．be
Please tell us how things used________．
A．to be
B．being
C．to being
D．be
They volunteer________at the local hospital．
A．to work
B．working
C．work
D．to working
That boy looks very unhappy．Let’s________．
A．to cheer up him
B．to cheer him up
C．cheer him up
D．cheer up him
His sister usually helps him________his homework．
A．doing
B．do
C．does
D．to doing
(2013苏州)—Your tea smells great！
—It’s from India．Would you like________？
A．it
B．this
C．some
D．little
