—Hi, I didn’t see you at the party in the company yesterday evening. -- Oh, all my family my son’s birthday at home.
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.