
There must be存在句的肯定推测形式,一定存在(有)..., 例子: There must be a rat in the house.房子里一定有只耗子. It must be 它/那一定是....(肯定的推测), 例句: It must be in the kitchen.它一定在厨房.

There must be存在句的肯定推测形式,一定存在(有)..., 例子: There must be a rat in the house.房子里一定有只耗子. It must be 它/那一定是....(肯定的推测), 例句: It must be in the kitchen.它一定在厨房.