按规律写数字.1. one five seven 2. five fifteen twenty 3

按规律写数字。1. one __________ five seven __________ __________

2. five __________ fifteen twenty

3. two four __________ eight __________ __________ fourteen

4. twelve __________ fourteen __________ sixteen __________ eighteen nineteen

试题答案

1. three, nine, eleven 2. ten 3. six, ten, twelve 4. thirteen, fifteen, seventeen