The Greens will visit Yueyang if they _____ to China. A. comes B. come C. will come
There are _____ months in a year._____ month is December.
—Can your friend sing?--______.
Do you have a pen?I want _____ a letter.
—______ is the ruler? —______ two dollars.
We have six _____ .So we can know the time.