一维水质模型方程:用所给单词适当形式填空
来源:百度文库 编辑:杭州交通信息网 时间:2024/05/13 15:31:52
1.Can David___(put)an egg on his finger?
2.He often ___(catch)insects on his grandfather's farm.
2.He often ___(catch)insects on his grandfather's farm.
1,put can后动词用原型
2,catches 一般现在时 用复数形式
1,put
2,catches
put can后面用动词原型
catches 一般现在时
put
catches