This is         clock. And         clock is on         desk.

—You’ve dropped        “s” in the word “necessary”.
—Oh,          letter “s” is doubled.

—What color is it?
—It’s        orange. It is         orange sweater.

—Is that         eraser?
—Yes.         eraser is red.

There is        “s” and       “u” in the word “study”.

We can see         green bike        the tree.

用所给词的适当形式填空
—What color is ____(Alice) ruler?
—It’s yellow. It’s ____(a) yellow ruler.

—What’s this in English?
—It’s a        .

Mrs. White has        son and a daughter.

—Who is      man in a black hat?
—It’s Jim Brown. We often play       guitar together in our free time.