——Why should I correct that mistake right now, Mum? It’s OK, I think..——Well, honey, it will _______ big trouble in the future.
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.