I go _____ school ______ foot.A. to, by B. to, on C. / , on
—What are the birds doing ? —They are in the tree.A.sing B.singing C.sings
—Is it going to rain ? —Yes,it is.A.yesterday B.tomorrow C.three days ago
—Here you are. — A.Excuse me B.Sorry. C.Thank you.
Ten minutes ago, there______ an eraser, a pen and some books on the desk.
— You have found your lost umbrella, haven’t you?—Yes. I _____ it behind the door this afternoon.