-- What are you doing? -- I an e-mail my Chinese penfriend.A. writing, to B. am writing, for C. am writing, to
--_________ bed now, Liu Tao. --OK. Good night, Mum. A. School B. Go C. Go to
This is _______ orange. A. an B. a C. some
--_________ up, Nancy. --OK. A. Go B. Get C. Go to
Look, that’s ___________ sweater. A. a B. an C. /
__________ the tap, please. A. Turn on B. Open C. Close