I saw Mike go into the library with Mary happily just now.( )
A.宾补B.状语C.直宾D.表语
These keys are ( )
she
hers
her
Johna soccer.( )
have
has
is
There are two in her family.( )
child
childs
children
I didn't know _____.( )
what we could do
how we could do
what can we do
How long is it since he _____this school?
He _____for three years.( )
has left; has left
left; has been away
leaves; has left