—I don’t know________next.—You’d better finish your homework first.A.what to doB.how to doC.when to do
— Your English is very good. —____________.
— ________, where is my pencil? — ________, I don’t know.
— ____________ ? — J-E-N-N-Y, Jenny.
—Thank you, Thomas. —________.
— Is this a key? — ________ .