—Whose room is this? Is it the______? —Yes, it is ______.A. twins'; Tom and Tim'sB. twin's; Tom's and Tim'sC. twins'; Tom and Tim
We are happy ______ our success.
Most students have ______ homework to do every day.
Now telephones are very popular and they are much ______ than before.
– How much does it cost?– Four ______ yuan.
Ricky was ill yesterday, ______ he had to stay at home.