I think difficult for us to learn a foreign language well.A.it B. that C. this
She has ________ good sense of humour and never says _______ bad word about anyone.
This is ________ orange. __________ orange is yellow.
—What’s matter? —I have toothache.
I have e-dog .Its name is Hobo.
I can’t remember when exactly the Robinsons left _____ city. I only remember it was ______ Sunday.