are made of
A．Glasses; glasses. B．Glass; glass C．Glasses; glass. D．not start out.
Mr. Wu came into the classroom , a book in his hand.
A．hold B．holds C．holding D．held
He sat down a computer.
A．in the front of B．in front of C．in front D． front of
She learns more about her job
A．day by day B．day to day C．one by day D．one after one.
How about inviting Miss Liu a picnic with us ?
A．have B．has C． having D．to have
He came back night ,and he felt .
A．at ; happily. B．at; happy . C．in; happy . D．in; happily.
