1.写出单词的过去式.
(1)study studied
(2)win won
(3)fly flew
(4)swim swam
(5)is was
(6)are were
2.语音
(1)[ 错]slow brown
(2)[ 错]boat soap
(3)[ 对]cow south
(4)[ 错]know how
(5)[ 对]coat snow
(6)[ 对]now loud
(7)[ 对]here there
(8)[ 错]cheer pear
(9)[ 错]cheer watch
1.写出单词的过去式.
(1)study studied
(2)win won
(3)fly flew
(4)swim swam
(5)is was
(6)are were
2.语音
(1)[ 错]slow brown
(2)[ 错]boat soap
(3)[ 对]cow south
(4)[ 错]know how
(5)[ 对]coat snow
(6)[ 对]now loud
(7)[ 对]here there
(8)[ 错]cheer pear
(9)[ 错]cheer watch