1.I have two______(knife). I u se them to cut watermelons.
2.At the beginning of the ________ (twenty) century.
3.You should get a good ________(教育) at school,then your dream will come true.
4.We are learning from each other.We need good _______(交流)
5.Everyone is here,______(除......之外)Tom,because he is ill.
